Description

Acetic acid, 2,2'-[[4-[[1-hydroxy-6-[( 4-methoxyphenyl)amino]-3-sulfo-2-naphthalenyl]azo ]-4'-[[1-hydroxy-6-[(4-methoxyphenyl)amino]-4-sulf o-2-naphthalenyl]azo][1,1'-biphenyl]-3,3'-diyl]b is(oxy)]bis-, potassium sodium salt is a high-purity, complex azo dye intermediate with significant commercial importance. This compound is valued for its role as a critical precursor in the synthesis of high-performance dyes and pigments, offering excellent color properties and stability. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries for producing vibrant and durable colorants.

Application

• Primary intermediate for the synthesis of high-grade azo dyes and pigments used in textile coloring.
• Key component in the manufacturing of inks for packaging, security, and digital printing applications.
• Used in the production of specialty coatings and paints requiring specific color fastness and light stability.
• Potential use as a colorant precursor in plastics and polymer masterbatches.
• Employed in research and development laboratories for creating novel chromophoric systems.
• May serve as a staining agent or biological marker in specialized analytical and histological applications.

Basic Information

Product Name	Acetic acid, 2,2'-[[4-[[1-hydroxy-6-[( 4-methoxyphenyl)amino]-3-sulfo-2-naphthalenyl]azo ]-4'-[[1-hydroxy-6-[(4-methoxyphenyl)amino]-4-sulf o-2-naphthalenyl]azo][1,1'-biphenyl]-3,3'-diyl]b is(oxy)]bis-, potassium sodium salt
CAS No.	83249-28-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Potassium sodium bis(2-{4-[2-{6-[(4-methoxyphenyl)amino]-1-hydroxy-3-sulfo-2-naphthyl}diazenyl]-4'-[2-{6-[(4-methoxyphenyl)amino]-1-hydroxy-4-sulfo-2-naphthyl}diazenyl][1,1'-biphenyl]-3-yloxy}acetate); C.I. Acid Black 210; Acid Black 210; Azo dye intermediate 83249-28-9; Bis(2-{4-[2-{6-[(4-methoxyphenyl)amino]-1-hydroxy-3-sulfo-2-naphthyl}diazenyl]-4'-[2-{6-[(4-methoxyphenyl)amino]-1-hydroxy-4-sulfo-2-naphthyl}diazenyl]biphenyl-3-yloxy}acetic acid) potassium sodium salt
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive analytical methods including HPLC, UV-Vis spectroscopy, and titration to confirm identity, purity, and critical functional group content. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals	≤ 20 ppm

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