Description

Sodium 4-(Phenylazo)Benzenesulphonate is an azo dye intermediate and analytical reagent. This compound is valued for its role as a key precursor in the synthesis of various dyes and pigments, as well as its utility in specific chemical detection methods. It is primarily required by manufacturers in the dye and pigment industry, as well as by laboratories engaged in analytical chemistry and research.

Application

• Dye and Pigment Manufacturing: A crucial intermediate for the synthesis of orange to red azo dyes used in textiles, inks, and plastics.
• Analytical Chemistry: Employed as a reagent or indicator in specific colorimetric assays and detection methods.
• Research & Development: Used in chemical research for studying azo coupling reactions and developing new functional materials.
• Laboratory Reagent: Serves as a standard or reference material in quality control and analytical laboratories.

Basic Information

Product Name	Sodium 4-(Phenylazo)Benzenesulphonate
CAS No.	42975-18-8
Molecular Formula	C12H9N2NaO3S
Molecular Weight	284.26 g/mol
Synonyms	4-(Phenylazo)benzenesulfonic acid sodium salt; Sodium 4-(phenylazo)benzenesulfonate; Sodium phenylazobenzenesulfonate; Orange G sodium salt (related); C.I. Acid Orange 6; Benzenesulfonic acid, 4-(phenylazo)-, sodium salt; Azobenzene-4-sulfonic acid sodium salt; p-(Phenylazo)benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-(Phenylazo)Benzenesulphonate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) documenting specifications such as assay, impurity profile, and physical characteristics is available for every shipment upon request.

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 tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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