Description

Benzoic acid, 2-amino-, diazotized, coupled with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized 3,3'-dimethyl[1,1'-biphenyl]-4,4'-diamine and 5,5'-[oxybis[(5-hydroxy-3,1-phenylene)oxy]]bis[1,3-benzenediol], sodium salt is a complex, high-purity synthetic dye intermediate designed for demanding colorant applications. Its intricate molecular structure provides exceptional color strength and stability, making it a critical component for producing high-performance pigments and dyes. This product is essential for manufacturers in the textile, ink, and specialty coatings industries who require reliable, consistent intermediates for vibrant and durable colors.

Application

• Textile Dyeing: As a key intermediate for producing high-fastness azo dyes for cotton, nylon, and polyester fibers.
• Ink Manufacturing: Used in the synthesis of pigments for high-quality printing inks, including packaging and security inks.
• Industrial Coatings: Serves as a precursor for pigments used in automotive, architectural, and industrial paints requiring excellent weatherability.
• Plastic and Polymer Coloring: An intermediate for colorants used in the mass coloration of plastics and synthetic polymers.
• Leather Finishing: Employed in the production of dyes for achieving deep, uniform shades on leather goods.
• Paper Coloring: Used in the manufacture of dyes for specialty and decorative papers.
• Research & Development: Serves as a valuable chemical for R&D laboratories developing new colorant systems and studying dye chemistry.

Basic Information

Item	Details
Product Name	Benzoic acid, 2-amino-, diazotized, coupled with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized 3,3'-dimethyl[1,1'-biphenyl]-4,4'-diamine and 5,5'-[oxybis[(5-hydroxy-3,1-phenylene)oxy]]bis[1,3-benzenediol], sodium salt
CAS No.	98072-80-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Brown 29; Diazotized 2-Aminobenzoic Acid coupled component; Sodium salt of a complex azo dye intermediate; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazo component; 3,3'-Dimethylbenzidine tetrazonium salt coupled intermediate; Bis(oxyphenylene) ether coupled azo compound; Azo dye coupling product sodium salt; Dye intermediate CAS 98072-80-1
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including chromatographic purity analysis and strength assessment. A Certificate of Analysis (COA) detailing specific parameters such as assay, impurity profile, and color value is provided with each shipment to guarantee it meets your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Ash Content	Max. 2.0%
Water Solubility	Soluble
Heavy Metals (as Pb)	Max. 20 ppm

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