Description

2-[4,5-dihydro-3-methyl-4-[[4-[[4-[[2-methyl-4-[(2,5,6-trichloropyrimidin-4-yl)amino]phenyl]azo]benzoyl]amino]-2-sulphophenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzene-1,4-disulphonic acid is a complex, high-purity azo dye intermediate and specialty chemical. This compound is valued for its precise molecular structure, which is critical for imparting specific color and performance characteristics in advanced applications. It is primarily utilized by manufacturers in the textile, ink, and specialty polymer industries seeking consistent quality and reliable supply for their production processes.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-performance reactive dyes used in textile coloring, particularly for cotton and cellulose fibers.
• Specialty Ink Production: Used in the formulation of advanced inks for digital printing, security printing, and packaging that require specific lightfastness and chemical resistance.
• Functional Polymer Additive: Can be incorporated into polymers to introduce specific chromophoric or functional properties for optical applications.
• Research & Development: Serves as a building block in organic synthesis and chemical research for developing new colorants and functional materials.
• Analytical Chemistry: Potential use as a reagent or standard in analytical methods due to its distinct chemical signature.

Basic Information

Product Name	2-[4,5-dihydro-3-methyl-4-[[4-[[4-[[2-methyl-4-[(2,5,6-trichloropyrimidin-4-yl)amino]phenyl]azo]benzoyl]amino]-2-sulphophenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzene-1,4-disulphonic acid
CAS No.	71750-84-0
Molecular Formula	C34H23Cl3N10O11S3
Molecular Weight	941.29 g/mol
Synonyms	Reactive Black 5 Intermediate; Azo Dye Intermediate 71750-84-0; 1,3,6-Naphthalenetrisulfonic acid, 8-[[4-[[4-[(2,5,6-trichloro-4-pyrimidinyl)amino]-2-methylphenyl]azo]benzoyl]amino]-5-[[4-[(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo]-3-sulfophenyl]azo]-; C.I. Reactive Black 5 related intermediate; Trisulfonated azo pyrazolone dye intermediate; 2-Naphthalenesulfonic acid derivative; Tetrasodium 8-acetamido-2-phenylazo-1-naphthol-3,6-disulfonate related compound (technical).
EINECS	Contact for details

Quality Control

Our production of this specialty intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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