Description

Ammonium 5-Amino-2-Nitrobenzenesulphonate is an ammonium salt derivative of a nitro-aminobenzenesulfonic acid, serving as a key organic intermediate and dye precursor. Its value lies in providing a reactive, water-soluble aromatic amine functionality for controlled synthesis in demanding chemical processes. This compound is essential for manufacturers in the dyes and pigments, pharmaceutical intermediates, and agrochemical synthesis sectors who require high-purity, consistent building blocks.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a critical diazo component for synthesizing high-value, colorfast azo dyes used in textiles, inks, and specialty coatings.
• Pharmaceutical Intermediate: Utilized in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs) requiring specific sulfonate and nitro-amine functionalities.
• Agrochemical Synthesis: Acts as a building block in the production of certain herbicides, fungicides, and other crop protection agents.
• Chemical Research & Development: Employed in organic synthesis laboratories for developing novel compounds and conducting structure-activity relationship (SAR) studies.
• Specialty Chemical Manufacturing: Used in the production of corrosion inhibitors, optical brighteners, and other performance chemicals.

Basic Information

Product Name	Ammonium 5-Amino-2-Nitrobenzenesulphonate
CAS No.	71411-69-3
Molecular Formula	C₆H₉N₃O₅S
Molecular Weight	235.22 g/mol
Synonyms	5-Amino-2-nitrobenzenesulfonic acid ammonium salt; 2-Nitro-5-aminobenzenesulfonic acid ammonium salt; Ammonium 2-nitro-5-aminobenzenesulfonate; 5-Amino-2-nitrobenzenesulphonic acid ammonium salt; Ammonium 5-amino-2-nitrobenzene-1-sulfonate; C.I. 37135; Benzenesulfonic acid, 5-amino-2-nitro-, ammonium salt
EINECS	Contact for details

Quality Control

Our Ammonium 5-Amino-2-Nitrobenzenesulphonate is produced under a stringent 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 results from HPLC, IR, and titration methods 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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