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4-Aminotoluene-3-sulfonic acid

BGC Id:490163905085
CAS No:88-44-8
Synonyms:4b acid ; 4-aminotoluol-3-sulfonsure ; 5-methylorthanilic acid ; toluidine-sulfonicacid ; 4b acid, pure ; p-toluidine-2-sulfonicscid ; ptmsa ; p-toluidine-m-sulfonic acid ; red4bacid ; ptms
Molecular Formula:C7H9NO3S
Molecular Weight:187.22
EINECS:201-831-3
Structural Formula

The most competitive supplier in 2025

The following 11 notable providers have been checked and can be recommended.
Chemical-Suppliers
BLD Pharmatech
Smile code: O=S(C1=CC(C)=CC=C1N)(O)=O MDL Number: MFCD00007908 Purity : 98% Available in stock: 21485 g
Chemical-Suppliers
Leap Chem
Molecular Formula: C7H9NO3S Molecular Weight: 187.22 Hazard Symbols: T,C,Xi UN Number: UN 2585 8/PG 3 WGKGermany: 2 PackingGroup: III HS Code: 29214300

The last intensive check and update was carried out on 2025/07/31.

Identify

Synonyms:
4b acid ; 4-aminotoluol-3-sulfonsure ; 5-methylorthanilic acid ; toluidine-sulfonicacid ; 4b acid, pure ; p-toluidine-2-sulfonicscid ; ptmsa ; p-toluidine-m-sulfonic acid ; red4bacid ; ptms
CAS:
88-44-8
EINECS:
201-831-3
Molecular Formula:
C7H9NO3S
MDL:
SMILES:
C1=CC(=CC=C1C2=CN=C(O2)CCl)Cl

Properties

Molecular Weight:
187.22 g·mol−1
Density:
1.49 g/cm3 at 25° C
Melting point:
300 °C
Boiling point:
>350° C
Physical Description:
beige crystalline powder

Suppliers

Shanghai Mintchem Development Co., Ltd.

Company type: Leading producer
We are seller of Sodium tetrakis[3,5-bis(1,1,1,3,3,3-hexafluoro-2-methoxy-2-propyl)phenyl]borate 3-hydrate. Shanghai Mintchem Development Co., Ltd. manufactures and supplies inorganic fluoride chemicals and flame retardants (IPPP, APP, micron magnesium hydroxide, micron aluminum hydroxide, etc) Metal chemicals ( bismuth salts, Copper salts, Chrome salts Tin salts, Nickel salts, Manganese salts, Zinc salts series, and Iron chemicals), Flux water treatment chemicals (sulfur, Boron, heavy metal), Organic Catalysts, Organic compounds ,Oil and oilfield chemicals, Air treatment chemicals ...
Country: P.R.China   Phone: +86-21-68451592   Telefax: +86-21-68450923

Xingrui Industry Co., Limited

Company type: Leading producer
Country: P.R.China
Phone: +86-531-88980365
Telefax: +86-531-88980365
Xingrui Industry CO., LTD. is a professional manufacturing enterprise integrating R&D, production and sales. We sell Behenyl trimethyl ammonium chloride as well. The products involved fine chemicals, pharmaceutical intermediates, dye intermediates, cosmetic raw materials and so on. The company is ranked among the outstanding producers in the fine chemical industry. Xingrui Industry always strive to be the most reliable partner of our customers, and strive to build a customer-trusted, socially respected, world-class fine chemi ...

Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)

Hangzhou Meite Industry Co., Ltd. is an international high-tech enterprise founded in 1998, specialized in R&D and manufacture on intermediates, medicines, agrochemical, dyestuff, flavor, fragrance, cosmetic, natural extracts series products. We are seller of Monomethyl 5-nitroisophthalate. We have an efficient R&D centre, get a strong technical support from Zhejiang University of Technology and Institute of Chemistry, Wuhan Branch, Chinese Academy of Sciences. Our factory Hangzhou Meite Chemical Co.,Ltd. is located in Fi ...
Company type: Producer
Country: P.R.China
Phone: +86 571 88026825
Telefax: +86 571 88282557

Zehao Industry Co., Ltd.

The Shepherd Chemical Company was founded in Norwood, Ohio, in 1916. We are a fourth-generation company and a custom manufacturer of Inorganic Metal Salts and Organic Metal Compounds to the global marketplace. Our long-standing success is built upon technical expertise, supplier reliability, and customer relationships. Our goal is to supply the marketplace with high quality metal compounds as standard or customized products. Ethyl butyrate is also served by Zehao Industry Co., Ltd.. Our capabilities are comprised of our manufacturi ...
Country: P.R.China   Phone: +86-531-88909322   Telefax: +86-531-88909322

Dayang Chem (Hangzhou) Co.,Ltd.

Company type: Leading producer
Country: P.R.China
Phone: +86-571-88938639
Telefax: +86-571-8893-8652
Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We provide N-Benzylacetamide as well. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in ...

Hangzhou Lingrui Chemical Co., Ltd.

Established in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. In our R&D centre, we have a staff of skilled and experienced research chemists. This has enabled us to meet the special requirements of our customers and it has enabled us to provide quality products at competitive prices. Lingrui’s credo is committed to your reliable business partne ...
Company type: Producer
Country: P.R.China
Phone: +86-571-88092529
Telefax: +86-571-87334908

Xiamen Equation Chemical Co.,Ltd

Company type: Bulk chemical producer
Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. We are supplier of 4-Phenoxybenzoic acid. We are committed to provide experienced high quality product and JIT performance to benefit our customers.
Country: P.R.China   Phone: +86 592 6515854   Telefax: +86 592 6515854

BLD Pharmatech Ltd

Company type: Supplier
Country: P.R.China
Phone: +86-21-61629022
Telefax: +86-21-50201702
Founded in 2014 and headquartered in Shanghai, China, BLD Pharmatech Ltd. with more than 600,000 items, scale up manufacture and custom services is a leading manufacturer and supplier of diversified research chemicals in the industry. We provide 2,5-Dibromopyrazine as well. Our considerable stock of a wide range of laboratory chemicals, from heterocycles, boron acids, amino acids, metal catalysts to chiral compounds, is ready for worldwide shipping. The ISO certifications and DUNS registration are our testimonie ...

Leap Chem Co., Ltd

LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...
Company type: Bulk and laboratory supplier
Country: P.R.China
Phone: +852-30606658

Skyrun Industrial Co., Ltd.

Company type: Leading producer
Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. Skyrun Industrial Co., Ltd. is a seller of 4-n-Butylbenzoic acid. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial produc ...
Country: P.R.China   Phone: +86-576-84015261   Telefax: +86-576-84015261

BIOZOL Diagnostica Vertrieb GmbH

Company type: Supplier of chemical products
Country: Germany
Phone: +49-871-966346-0
Telefax: +49-871-966346-13
Chemos®, a subsidiary of BIOZOL Diagnostica Vertrieb GmbH, is a leading supplier of ready to use solutions for the lab and chemical industry. BIOZOL Diagnostica Vertrieb GmbH also offers Isodecyl oleate. We are producing reagents and standards for the analytical lab and supplying raw materials for the chemical and pharmaceutical industry. The base of our solutions are a portfolio of ~ 200.000 raw materials where ~ 50.000 are already available for R+D ready to order in our shop. We are supplying and producing lab quantities from tiny qua ...

Safety Information

Hazard Classes:
8
Risk Codes:
45-34-36 (R)
Safety Codes:
53-26-27-28-36/37/39-45-28A (S)
WGK Germany:
2
RID / ADR:
UN 2585 8 / PG 3
RTECS:
XT6320000

What other providers are available for CAS 88-44-8?

In addition to the providers presented here for 4-Aminotoluene-3-sulfonic acid with the CAS number 88-44-8, there are other 40 providers with slightly different product names available for this CAS number.

+2 additional providers that we know from the past
+2 additional providers that we know from the past
BuGuCh & Partners +4 additional providers that we know from the past
+5 additional providers that we know from the past
+6 additional providers that we know from the past
Simagchem Corporation | Xiamen Hisunny Chemical Co., Ltd. +11 additional providers that we know from the past
+2 additional providers that we know from the past
+4 additional providers that we know from the past




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