Description

1H-Pyrazole-3-carboxylic acid, 5-hydroxy-4-[[5-[[4-[5-hydroxy-3-methyl-4-[[2-sulfo-5-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]-1H-pyrazol-1-yl]benzoyl]amino]-2-sulfophenyl]azo]-1-(4-sulfophenyl)-, tetrasodium salt is a high-purity, complex azo dye intermediate designed for advanced colorant synthesis. This compound is valued for its precise molecular structure, which enables the production of high-performance dyes with excellent color fastness and stability. It is a critical raw material for manufacturers in the textile, ink, and specialty pigment industries seeking to develop sophisticated and durable color products.

Application

• Textile Dye Synthesis: A key intermediate for producing reactive and direct dyes for cotton, wool, and nylon, offering vibrant shades and superior wash-fastness.
• High-Performance Ink Manufacturing: Used in formulating inks for digital textile printing and specialty packaging, where color consistency and durability are paramount.
• Specialty Pigment Production: Serves as a precursor for creating complex organic pigments used in plastics, coatings, and automotive finishes.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Leather Dyeing: Utilized in the synthesis of dyes for the leather industry, providing deep, uniform coloration.
• Paper Coloring: An intermediate for dyes used in high-quality paper and board products.

Basic Information

Product Name	1H-Pyrazole-3-carboxylic acid, 5-hydroxy-4-[[5-[[4-[5-hydroxy-3-methyl-4-[[2-sulfo-5-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]-1H-pyrazol-1-yl]benzoyl]amino]-2-sulfophenyl]azo]-1-(4-sulfophenyl)-, tetrasodium salt
CAS No.	70210-12-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Black 5, Tetrasodium Salt; Reactive Black 5; Remazol Black B; C.I. 20505; 5-Hydroxy-1-(4-sulfophenyl)-4-[[4-[4-[5-hydroxy-3-methyl-4-[[2-sulfo-5-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]-1H-pyrazol-1-yl]benzoylamino]-2-sulfophenyl]azo]-1H-pyrazole-3-carboxylic acid tetrasodium salt; Reactive Black B; Lanasol Black B
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to rigorous quality control protocols to ensure batch-to-batch consistency and purity. Quality is verified through comprehensive analytical methods including HPLC, spectrophotometry, and titration. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles 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). Keep away from strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Completely 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.