Description

2-Amino-4-Nitrobenzenesulfonic Acid Ammonium Salt is a key organic intermediate and dye precursor with significant commercial importance. Its value lies in its role as a versatile building block for synthesizing azo dyes, pigments, and other functional chemicals. This compound is essential for manufacturers in the dye and pigment, pharmaceutical, and specialty chemical industries seeking reliable, high-purity intermediates for their production processes.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical diazo component in the synthesis of yellow, orange, and red azo dyes and organic pigments used in textiles, inks, and plastics.
• Pharmaceutical Intermediate: Utilized in the research and development of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Chemical Synthesis Building Block: Acts as a precursor for more complex sulfonated aromatic compounds in specialty chemical manufacturing.
• Research & Development: Employed in academic and industrial laboratories for novel compound synthesis and material science applications.
• Photographic Chemicals: Can be used in the formulation of certain light-sensitive compounds and photographic developers.

Basic Information

Product Name	2-Amino-4-Nitrobenzenesulfonic Acid Ammonium Salt
CAS No.	50667-34-0
Molecular Formula	C₆H₉N₃O₅S
Molecular Weight	235.22 g/mol
Synonyms	Ammonium 2-Amino-4-nitrobenzenesulfonate; 4-Nitro-2-aminobenzenesulfonic Acid Ammonium Salt; 2-Amino-4-nitrobenzenesulfonic acid, ammonium salt; Benzenesulfonic acid, 2-amino-4-nitro-, ammonium salt; 4-Nitro-o-anilinesulfonic Acid Ammonium Salt; Ammonium 4-Nitroanthranilate-2-sulfonate; C.I. 37040
EINECS	Contact for details

Quality Control

Our 2-Amino-4-Nitrobenzenesulfonic Acid Ammonium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets defined specifications for identity, purity, and composition. A comprehensive Certificate of Analysis (COA) detailing all test 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The product is light-sensitive; prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (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.