Description

Benzenesulfonic Acid, 2-(Acetylamino)- is a specialized organic sulfonic acid derivative, recognized by CAS No. 6935-89-3. This compound serves as a versatile chemical intermediate and building block, valued for its strong acid character and reactivity in organic synthesis. It is primarily required by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Dye and Pigment Manufacturing: Acts as an intermediate in the creation of sulfonated azo dyes and other colorants.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Chemical Research & Development: Serves as a reagent in organic synthesis for introducing the benzenesulfonyl moiety.
• Catalyst and Additive Precursor: Can be utilized to develop specialized catalysts or performance additives.

Basic Information

Product Name	Benzenesulfonic Acid, 2-(Acetylamino)-
CAS No.	6935-89-3
Molecular Formula	C8H9NO4S
Molecular Weight	215.23 g/mol
Synonyms	2-Acetamidobenzenesulfonic Acid; N-Acetylsulfanilic Acid; o-Acetamidobenzenesulfonic Acid; 2-Acetamidophenylsulfonic Acid; 2-(Acetylamino)benzenesulfonic Acid; Acetylsulfanilic Acid; N-Acetyl-2-aminobenzenesulfonic Acid
EINECS	230-052-5

Quality Control

Our Benzenesulfonic Acid, 2-(Acetylamino)- is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, related substances, and physical characteristics. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, and we support compliance with global regulatory standards such as REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its strong acid/organic solvent nature, it should be stored separately from bases, oxidizing agents, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heavy Metals	≤ 20 ppm

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