Description

Sodium 4-(p-Aminoanilino)-3-Nitrobenzenesulphonate is a specialized aromatic sulfonate salt with a unique bifunctional amine-nitro structure. This compound matters as a versatile chemical intermediate, offering reactive sites for diazotization, coupling, and reduction reactions, which are critical for synthesizing complex molecules. It is primarily needed by manufacturers in the dye and pigment industry for producing azo dyes, as well as by research and development laboratories focused on pharmaceutical intermediates and advanced material science.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key coupling component or diazo component in the synthesis of high-value, color-fast azo dyes for textiles, inks, and plastics.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs), leveraging its aromatic amine and nitro groups for further chemical transformations.
• Chemical Research & Synthesis: Employed in academic and industrial R&D as a building block for creating novel compounds with potential applications in materials science and agrochemicals.
• Photographic Chemicals: Can be utilized in the formulation of certain specialty photographic chemicals due to its light-sensitive nitroaromatic structure.
• Corrosion Inhibitor Formulations: Potential use as a component in specialized corrosion inhibitor blends for industrial water treatment systems.

Basic Information

Product Name	Sodium 4-(p-Aminoanilino)-3-Nitrobenzenesulphonate
CAS No.	74900-77-9
Molecular Formula	C12H10N3NaO5S
Molecular Weight	331.28 g/mol
Synonyms	4-[(4-Aminophenyl)amino]-3-nitrobenzenesulfonic acid sodium salt; Sodium 4-[(4-aminophenyl)amino]-3-nitrobenzenesulfonate; Benzenesulfonic acid, 4-[(4-aminophenyl)amino]-3-nitro-, sodium salt (1:1); 3-Nitro-4-(p-aminoanilino)benzenesulfonic acid sodium salt; C.I. 37195; p-Aminoanilino-3-nitrobenzenesulfonic acid sodium salt; Sodium p-aminoanilino-3-nitrobenzenesulphonate
EINECS	Contact for details

Quality Control

Our Sodium 4-(p-Aminoanilino)-3-Nitrobenzenesulphonate is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity and performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with industrial chemical standards, and we support customer-specific quality agreements.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details
Solubility (1% in Water)	Clear, yellow to orange solution

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