Description

Disodium 7-[(4-Aminophenyl)Azo]Naphthalene-1,3-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its primary value lies in its role as a versatile precursor for synthesizing a range of acid dyes and reactive dyes, which are essential for coloring textiles like wool, silk, and nylon. This compound is a critical raw material for manufacturers in the dye and pigment industry, as well as for research and development laboratories focused on advanced colorant chemistry.

Application

• Primary intermediate for the synthesis of acid dyes used in textile printing and dyeing.
• Key precursor in the manufacture of reactive dyes for cellulose fibers like cotton and rayon.
• Used in the production of pigments and lakes for inks, coatings, and plastics.
• Employed as a chemical intermediate in organic synthesis for specialized azo compounds.
• Potential use in the development of biological stains and histochemical dyes for laboratory applications.
• Serves as a starting material for research into novel functional dyes with specific optical properties.

Basic Information

Product Name	Disodium 7-[(4-Aminophenyl)Azo]Naphthalene-1,3-Disulphonate
CAS No.	67893-49-6
Molecular Formula	C16H12N3Na2O6S2
Molecular Weight	460.39 g/mol
Synonyms	7-[(4-Aminophenyl)azo]-1,3-naphthalenedisulfonic acid, disodium salt; Acid Orange 12 Intermediate; C.I. 15970; 1,3-Naphthalenedisulfonic acid, 7-[(4-aminophenyl)azo]-, disodium salt; 4-Aminoazobenzene-2',4'-disulfonic acid, disodium salt; Azoic Diazo Component 12; Disodium 4-aminoazobenzene-2,4'-disulfonate
EINECS	Contact for details

Quality Control

Our Disodium 7-[(4-Aminophenyl)Azo]Naphthalene-1,3-Disulphonate is produced under strict quality management protocols to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identification verification. A Certificate of Analysis (COA) detailing specific results for purity, moisture content, and heavy metals is provided with every shipment to support your quality assurance processes.

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 incompatible materials such as strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Orange to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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