Description

Sodium 5-[[3-(Anilinosulphonyl)-4-Methylphenyl]Azo]Naphthalene-2-Sulphonate is a synthetic azo dye intermediate of significant commercial importance. This compound serves as a critical precursor in the production of high-performance dyes and pigments, valued for its ability to impart specific color properties and lightfastness. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for developing colorants with tailored characteristics.

Application

• Primary Intermediate for Azo Dyes: Essential for synthesizing a range of orange to red azo dyes used in textile dyeing and printing.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, where color stability is paramount.
• Specialty Chemical Synthesis: Acts as a key building block for creating functional dyes used in research and advanced material applications.
• Laboratory Reagent: Employed in chemical research and development for studying azo coupling reactions and dye properties.

Basic Information

Product Name	Sodium 5-[[3-(Anilinosulphonyl)-4-Methylphenyl]Azo]Naphthalene-2-Sulphonate
CAS No.	5858-92-4
Molecular Formula	C23H16N3NaO5S2
Molecular Weight	501.50 g/mol
Synonyms	5-[[3-(Anilinosulfonyl)-4-methylphenyl]azo]naphthalene-2-sulfonic acid sodium salt; C.I. Acid Orange 33; Acid Orange A; Sodium 5-[(3-(phenylaminosulfonyl)-4-methylphenyl)azo]naphthalene-2-sulfonate; 2-Naphthalenesulfonic acid, 5-[[3-[(phenylamino)sulfonyl]-4-methylphenyl]azo]-, sodium salt; Acid Leather Orange PG; Amacid Orange A; Supranol Orange G
EINECS	227-479-5

Quality Control

Our production of Sodium 5-[[3-(Anilinosulphonyl)-4-Methylphenyl]Azo]Naphthalene-2-Sulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available 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). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm

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