Trisodium 4-Amino-5-Hydroxy-3-[[4'-[[4-Hydroxy-2-[(o-Tolyl)Amino]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate CAS NO 6358-80-1

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CAS No.:6358-80-1

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Trisodium 4-Amino-5-Hydroxy-3-[[4'-[[4-Hydroxy-2-[(o-Tolyl)Amino]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyazo structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-value, colorfast dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and durable colors.

Application

Primary Intermediate for Textile Dyes: Key building block for synthesizing high-performance direct, reactive, and acid dyes for cotton, wool, silk, and nylon.
Pigment Manufacturing: Used in the production of organic pigments for inks, plastics, and industrial coatings requiring strong color strength and stability.
Specialty Ink Formulation: Employed in the creation of inks for digital textile printing and other advanced printing technologies.
Research & Development: Serves as a reference standard and starting material in chemical R&D for novel chromophores and functional dyes.
Leather Dyeing: Utilized in the formulation of dyes for coloring leather goods.
Paper Coloring: Applied in the manufacture of dyes for specialty paper products.

Basic Information


Product Name	Trisodium 4-Amino-5-Hydroxy-3-[[4'-[[4-Hydroxy-2-[(o-Tolyl)Amino]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	6358-80-1
Molecular Formula	C46H30N8Na3O13S3
Molecular Weight	1060.93 g/mol
Synonyms	Direct Blue 71 (Free Acid); C.I. 34140; Amanil Sky Blue 6BX; Atul Direct Sky Blue 6BX; Benzo Sky Blue; Chloramine Sky Blue 6B; Diphenyl Sky Blue 6BX; Sirius Supra Blue 6B; Sodium 4-Amino-5-hydroxy-3,6-bis[[4'-[(2-hydroxy-5-methylphenyl)azo][1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonate; Trisodium 4-amino-5-hydroxy-6-[2-[4-[4-[2-(2-hydroxy-5-methylphenyl)hydrazinylidene]cyclohexa-2,5-dien-1-ylidene]phenyl]diazenyl]-3-[2-[4'-[2-(2-hydroxy-5-methylphenyl)hydrazinylidene][1,1'-biphenyl]-4-yl]diazenyl]naphthalene-2,7-disulfonate
EINECS	228-787-8

Quality Control

Our Trisodium 4-Amino-5-Hydroxy-3-[[4'-[[4-Hydroxy-2-[(o-Tolyl)Amino]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. A detailed Certificate of Analysis (COA) documenting purity, impurity profile, and physical parameters is provided with each shipment to guarantee batch-to-batch consistency and performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The product is hygroscopic; ensure containers are sealed after use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Dark blue to bluish-black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Ash Content	Contact for details
Solubility (in Water)	Freely soluble