Description

2-Amino-3-Methylbenzenesulfonic Acid is a versatile aromatic sulfonic acid derivative that serves as a critical intermediate in the synthesis of complex organic molecules. Its value lies in the combination of an amino group and a sulfonic acid group on a methyl-substituted benzene ring, enabling its use in creating dyes, pigments, and other functional chemicals. This compound is essential for manufacturers in the dye and pigment, pharmaceutical, and agrochemical industries seeking to produce high-performance colorants and active ingredients.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color fastness and solubility.
• Pharmaceutical Synthesis: Used as an intermediate in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Manufacturing: Serves as a precursor in the synthesis of herbicides, pesticides, and plant growth regulators.
• Chemical Research & Development: Employed in organic synthesis and as a standard or reagent in laboratory settings for method development.
• Photographic Chemicals: Can be used in the formulation of certain photographic developers and sensitizers.
• Corrosion Inhibitor Formulation: Finds application in the production of specialty chemicals used to protect metals in industrial processes.

Basic Information

Product Name	2-Amino-3-Methylbenzenesulfonic Acid
CAS No.	600-77-1
Molecular Formula	C7H9NO3S
Molecular Weight	187.22 g/mol
Synonyms	3-Amino-2-methylbenzenesulfonic acid; 2-Methyl-3-aminobenzenesulfonic acid; 3-Amino-o-toluenesulfonic acid; o-Toluidine-3-sulfonic acid; 2-Methylaniline-3-sulfonic acid; 1-Amino-2-methyl-6-sulfobenzene; 6-Amino-2-methylbenzenesulfonic acid; Benzenesulfonic acid, 2-amino-3-methyl-
EINECS	209-997-7

Quality Control

Our 2-Amino-3-Methylbenzenesulfonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing the results of tests such as assay, moisture content, and heavy metals. Our quality commitment ensures consistent performance and reliable supply for your critical synthesis processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 1.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.