|
Suppliers for CAS
118-48-9
|
Properties | | CAS |
118-48-9 | | Formula |
C8H5NO3 | | EINECS |
204-255-0 |
|
|
35 Registered suppliers
Simagchem Corporation
P.R.China
Sancai Industry Co.,Ltd.
P.R.China
| Appearance | Light brown powder
| | HPLC purity | 99.0% Min
| | Moisture | 1.0% Max
| | Ash | 0.5% Max |
Hangzhou Keying Chem Co., Ltd.
P.R.China
| Appearance | Light brown powder
| | HPLC purity | 99.0% Min
| | Moisture | 1.0% Max
| | Ash | 0.5% Max |
| Appearance | Light brown powder
| | HPLC purity | 99.0% Min
| | Moisture | 1.0% Max
| | Ash | 0.5% Max |
H&Z Industry Co.,Ltd
P.R.China
| Appearance | Light brown powder
| | HPLC purity | 99.0% Min
| | Moisture | 1.0% Max
| | Ash | 0.5% Max |
Xingrui Industry Co., Limited
P.R.China
| Appearance | Light brown powder
| | HPLC purity | 99.0% Min
| | Moisture | 1.0% Max
| | Ash | 0.5% Max |
Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)
P.R.China
| Appearance | Light brown powder
| | HPLC purity | 99.0% Min
| | Moisture | 1.0% Max
| | Ash | 0.5% Max |
Leap Chem Co., Ltd
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Klaus F. Meyer GmbH
Germany
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Biesterfeld Spezialchemie GmbH
Germany
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Fountain Biotechnology Co.,Ltd
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Unilong Industry Co.,Ltd
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Create Chemical Co., Ltd.
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Krada CPS Industry S.L
Spain
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Hangzhou Zhongqi Chem Co., Ltd
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Nantong Xindao Biotech Ltd
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Lori Industry Co., Ltd
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Zehao Industry Co., Ltd.
P.R.China
Molecular Formula: C8H5NO3
Molecular Weight: 163.13
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 29349990
Finetech Industry Limited
P.R.China
More details are to be found here
Hangzhou Lingrui Chemical Co., Ltd.
P.R.China
More details are to be found here
Skyrun Industrial Co., Ltd.
P.R.China
More details are to be found here
Shandong SanYoung Industry Co., Ltd
P.R.China
More details are to be found here
Carbone Scientific Co., Ltd.
U.K.
More details are to be found here
Ambeed, Inc.
USA
Purity : 98% Smile code : O=C(NC1=CC=CC=C12)OC2=O MDL Number : MFCD00006700 MolFormula : C8H5NO3 MolWeight : 163.1302 Available in stock : 72421
More details are to be found here
BLD Pharmatech Ltd
P.R.China
Smile code: O=C(NC1=CC=CC=C12)OC2=O MDL Number: MFCD00006700 Purity : 98% Available in stock: 61531 g
More details are to be found here
Xiamen Equation Chemical Co.,Ltd
P.R.China
Smile code: O=C(NC1=CC=CC=C12)OC2=O MDL Number: MFCD00006700 Purity : 98% Available in stock: 61531 g
More details are to be found here
AK Scientific, Inc.
USA
Smile code: O=C(NC1=CC=CC=C12)OC2=O MDL Number: MFCD00006700 Purity : 98% Available in stock: 61531 g
More details are to be found here
Chemos GmbH & Co. KG
Germany
Smile code: O=C(NC1=CC=CC=C12)OC2=O MDL Number: MFCD00006700 Purity : 98% Available in stock: 61531 g
More details are to be found here
BuGuCh & Partners
Germany
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
Vivify Specialty Ingredients (previous Aakash Chemicals)
USA
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
World. Chem. Co., Ltd.
P.R.China
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
Technichem, Inc.
USA
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
BASF Belgium S.A. / N.V.
Belgium
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
Merck Schuchardt OHG
Germany
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
CM Fine Chemicals
Switzerland
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
Santa Cruz Biotechnology, Inc.
USA
Product name: ISATOIC ANHYDRIDE
Synonyms:1,2-Dihydro-3,1-benzoxazine-2,4-dione;2-(carboxyamino)-benzoicacicyclicanhydride;2,4-Dioxo-1,2-dihydro-4H-3,1-benzoxazine;4H-3,1-Benzoxazin-2,4-(1H)-dion;4H-3,1-Benzoxazin-2,4(1H)-dion;Anthranilic acid, N-carboxy-, cyclic anhydride;Benzoic acid, 2-(carboxyamino)-, cyclic anhydride;Benzoicacid,2-(carboxyamino)-,cyclicanhydride
CAS: 118-48-9
Formula: C8H5NO3
Molecular weight: 163.13
Chemical Properties:White prismatic crystals. Melting point 243 ℃ (decomposition). Soluble in ethanol, 1,4-dioxane.
Purity : 98%min
Water : 0.5%max
Melting point: 233 °C (dec.)(lit.)
Density: 1,52 g/cm3
Vapor Density: 5.6 (vs air)
Flesh point: 308 °C
Water solubility: decomposes
Sensitivity: Moisture Sensitive
BRN: 136786
Usage:
1.Starch anthranilate (Starch anthranilate) in the paper industry can improve the inorganic filler and fines retention, but also can improve the dry strength and tensile strength.
A variety of solvents and in the presence of various catalysts, starch anthranilate was obtained by the reaction of isatoic anhydride with starch system. The method is based on classical triethylamine as a catalyst, the reaction in dimethyl sulfoxide solvent.
(1) 40g of starch (dried overnight at 100 deg.] C), 4.0 g of isatoic anhydride, 5ml of triethylamine in 500ml dimethyl sulfoxide, 90 ~ 95 ℃ reaction was stirred 3h, at room temperature overnight, the The resulting light brown liquid was poured into 1L of methanol to precipitate washed with methanol, dried to obtain a white powder sample. Nitrogen 0.75%, the degree of substitution of 0.093.
(2)in an aqueous solution. 90g of cornstarch is dispersed in 250ml of water, 8g isatoic anhydride was added over 30 minutes, with 6% sodium hydroxide solution and adjusted to pH 8.5 to 9.0, maintaining the pH in the reaction time 2 hours. After the reaction was filtered, washed with 2L, dry place Soxhlet extraction, continuous extraction with ethanol 24h. The resulting product containing 0.70% nitrogen, available gum base degree of substitution (DS) of 0.086.
2.As a raw material medicine, pesticides, dyes, and it is an important intermediate herbicide bentazon
Brief manufactured process:
Anthranilic acid and phosgene reactions derived. Anthranilic acid was dissolved in hot water and concentrated hydrochloric acid under stirring phosgene, isatoic anhydride immediately precipitated. Exothermic reaction, adjust the speed of light gas into the temperature does not exceed 50 ℃. Continuous phosgene 2-4h, to significantly slow down the absorption rate so far. The product was dried in air at 100 ℃ drying derived products.
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