Description

Disodium [[4-[(4-Amino-7-Sulphonato-1-Naphthyl)Azo]Phenyl]Amino]Oxoacetate is a high-purity, water-soluble azo dye intermediate. This compound is valued for its role in synthesizing vibrant and stable colorants, particularly in applications requiring specific hue and fastness properties. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries for the production of advanced dyes and pigments.

Application

• As a key intermediate for reactive and direct dyes in textile coloration.
• In the synthesis of specialty pigments for inks and coatings.
• For research and development of novel colorants with enhanced light and wash fastness.
• In the manufacturing of biological stains and histochemical dyes.
• As a precursor in fine chemical synthesis for pharmaceutical or agrochemical applications.

Basic Information

Product Name	Disodium [[4-[(4-Amino-7-Sulphonato-1-Naphthyl)Azo]Phenyl]Amino]Oxoacetate
CAS No.	68400-55-5
Molecular Formula	C24H18N4Na2O8S
Molecular Weight	584.47 g/mol
Synonyms	Disodium 2-[[4-[(4-amino-7-sulphonato-1-naphthyl)azo]phenyl]amino]-2-oxoacetate; C.I. Acid Yellow 151; Acid Yellow 151; 2-[[4-[(4-Amino-7-sulfo-1-naphthalenyl)azo]phenyl]amino]-2-oxoacetic acid disodium salt; 2-[[4-[(4-Amino-7-sulfonato-1-naphthyl)azo]phenyl]amino]-2-oxoacetate disodium; Disodium (4-[(4-Amino-7-sulfonato-1-naphthyl)azo]phenyl)oxamoylaminomethanoate; Oxamic acid, N-[4-[(4-amino-7-sulfo-1-naphthyl)azo]phenyl]-, disodium salt
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is analyzed to confirm identity, purity, and consistency. Certificates of Analysis (COA) are available upon request, detailing specifications such as assay, impurity profile, and physical characteristics.

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.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 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.