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CAS No. 738-70-5
Suppliers for
CAS No. 738-70-5
Alternative product names with the identical CAS number:
Trimethoprim
Trimethoprim micronized
2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine
Properties
CAS : 738-70-5
Formula : C14H18N4O3
EINECS : 212-006-2
31 registered suppliers
P.R.China
Dayang Chem (Hangzhou) Co.,Ltd.
Trimethoprim
P.R.China
H&Z Industry Co.,Ltd
Trimethoprim
P.R.China
Sancai Industry Co.,Ltd.
Trimethoprim
Details
Appearance
White or yellowish-white powder
Solubility
Very slightly soluble in water, slightly soluble in alcohol.
Identification
A Melting point
199-203
B Specific absorbance
Max.287nm, 240-250
C IR-spectrum
Complies with reference spectrum
D Chemical reaction
Green fluorescence at 365nm
Appearance of solution
Not more intensely colored than Reference Solution BY7
Related substances Method A by HPLC
Impurity F
≤ 0.1%
Any single impurity
≤ 0.1%
Total impurities
≤ 0.2%
Method B by HPLC
Any single impurity
≤ 0.1%
Total impurities
≤ 0.2%
Heavy metals
≤ 20ppm
Residual methanol
≤ 3000ppm
Residual DMSO
≤ 5000ppm
Residual acetic acid
≤ 5000ppm
Impurity K(aniline) by GC
≤ 5ppm
Loss on drying
≤ 0.5%
Sulphated ash
≤ 0.1%
Assay
98.5-101.0%
Particle size
100% pass 300 mesh
P.R.China
Xingrui Industry Co., Limited
Trimethoprim
P.R.China
Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)
Trimethoprim
P.R.China
Leap Chem Co., Ltd
Trimethoprim
Details
Molecular Formula:
C14H18N4O3
Molecular Weight:
290.32
More details are to be found on
supplier
website
USA
ICC Chemical Corporation
Trimethoprim
Germany
B.M.P. Bulk Medicines & Pharmaceuticals GmbH
Trimethoprim
P.R.China
Newstar Chem Enterprise Ltd.
Trimethoprim
Belgium
AXO Industry SA
Trimethoprim
Türkiye
Zyntex Ltd
Trimethoprim
P.R.China
Wuhan PharmChem Co., LTD.
Trimethoprim
Details
EINECS
:212-006-2
Molecular formula
:C14H18N4O3
P.R.China
Xi'an Taicheng Chem Co., Ltd
Trimethoprim
P.R.China
Shandong Minglang Chemical Co., Ltd
Trimethoprim
P.R.China
Zehao Industry Co., Ltd.
Trimethoprim
Details
Appearance
White or yellowish-white powder
Melting point
199-203℃
Specific absorbance
Max 287nm
Any single impurity
≤ 0.1%
Total impurities
≤ 0.2%
Heavy metals
≤ 20ppm
Residual methanol
≤ 3000ppm
Residual DMSO
≤ 5000ppm
Loss on drying
≤ 1.0%
Sulphated ash
≤ 0.1%
Assay
98.5%~101.0%
P.R.China
Hangzhou Zhongqi Chem Co., Ltd
Trimethoprim
P.R.China
Nantong Xindao Biotech Ltd
Trimethoprim
P.R.China
Shandong SanYoung Industry Co., Ltd
Trimethoprim
P.R.China
Xiamen Equation Chemical Co.,Ltd
Trimethoprim
USA
AK Scientific, Inc.
2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine
P.R.China
Skyrun Industrial Co., Ltd.
Trimethoprim
Germany
BIOZOL Diagnostica Vertrieb GmbH
Trimethoprim
Germany
BuGuCh & Partners
Trimethoprim
P.R.China
Shandong Ench Chemical Co.,Ltd
Trimethoprim
Switzerland
Sigma-Aldrich International GmbH
Trimethoprim
P.R.China
BLD Pharmatech Ltd
2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine
Details
Smile code:
NC1=NC=C(CC2=CC(OC)=C(OC)C(OC)=C2)C(N)=N1
MDL Number:
MFCD00036761
Purity :
98%
Available in stock:
3595.005 g
USA
Santa Cruz Biotechnology, Inc.
Trimethoprim
Germany
Pharma Greven GmbH
Trimethoprim
Switzerland
CM Fine Chemicals
Trimethoprim
USA
INDAM Inc.
Trimethoprim micronized
U.K.
Forum Products Ltd.
Trimethoprim
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