Description

2-Anilino-5-Nitrobenzenesulphonic Acid is a specialized organic intermediate characterized by its sulfonic acid and nitro-substituted aniline structure. This compound matters for its role as a key precursor in the synthesis of dyes, pigments, and other functional chemicals, offering precise reactivity for coupling reactions. Industries that require high-purity chemical intermediates, such as dyestuff manufacturing, pharmaceutical research, and agrochemical production, are the primary users of this material.

Application

• Dye and Pigment Intermediate: A crucial building block for the synthesis of azo dyes, acid dyes, and other colorants.
• Pharmaceutical Synthesis: Used as a specialized intermediate in the research and development of active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Serves as a precursor in the production of certain herbicides and pesticides.
• Chemical Research & Development: Employed in organic synthesis for creating novel compounds with specific functional groups.
• Textile Auxiliaries: Can be used in the formulation of chemicals for textile processing and finishing.
• Photographic Chemicals: Finds application in the synthesis of certain light-sensitive compounds.

Basic Information

Product Name	2-Anilino-5-Nitrobenzenesulphonic Acid
CAS No.	88-35-7
Molecular Formula	C₁₂H₁₀N₂O₅S
Molecular Weight	294.28 g/mol
Synonyms	5-Nitro-2-anilinobenzenesulfonic Acid; 2-Anilino-5-nitrobenzenesulfonic Acid; Aniline-2-sulfonic acid, 5-nitro-; 5-Nitro-2-(phenylamino)benzenesulfonic Acid; 88-35-7; Benzenesulfonic acid, 2-anilino-5-nitro-; 2-(Phenylamino)-5-nitrobenzenesulfonic acid
EINECS	201-822-7

Quality Control

Our 2-Anilino-5-Nitrobenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing the results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

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). This product is hygroscopic (moisture-sensitive) and should be kept away from strong acids and organic solvents. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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