Description

2-[4-Chloro-6-[3-(1-Hydroxy-5-Sodiosulfo-2-Naphtylazo)-4-Sodiosulfoanilino]-1,3,5-Triazin-2-Ylamino]-1,4-Benzenedisulfonic Acid Disodium Salt is a high-purity, water-soluble reactive dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance dyes and pigments, offering excellent color fastness and stability. It is primarily sought by manufacturers in the textile, leather, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-grade reactive dyes used in textile coloring, particularly for cotton and cellulose fibers.
• Pigment Production: Used in the synthesis of organic pigments for inks, paints, and plastics, providing enhanced color strength and lightfastness.
• Leather Dyeing: Employed in the formulation of dyes for the leather tanning and finishing industry.
• Paper Coloring: Utilized in the production of dyes for specialty paper and packaging materials.
• Research & Development: Serves as a critical building block in chemical R&D for developing new chromophores and functional dyes.
• Industrial Colorants: Applied in the manufacturing of colorants for various industrial applications requiring specific solubility and bonding properties.

Basic Information

Item	Details
Product Name	2-[4-Chloro-6-[3-(1-Hydroxy-5-Sodiosulfo-2-Naphtylazo)-4-Sodiosulfoanilino]-1,3,5-Triazin-2-Ylamino]-1,4-Benzenedisulfonic Acid Disodium Salt
CAS No.	88108-67-2
Molecular Formula	C25H14ClN7Na4O13S4
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 Intermediate; C.I. Reactive Black 5 Precursor; Disodium 2-[4-chloro-6-[3-(1-hydroxy-5-sulfo-2-naphthylazo)-4-sulfoanilino]-1,3,5-triazin-2-ylamino]-1,4-benzenedisulfonate; 1,4-Benzenedisulfonic acid, 2-[4-chloro-6-[[3-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-, disodium salt; Reactive Dye Intermediate 88108-67-2; RB5 Intermediate; Tetrasodium 2-[4-chloro-6-[(3-[(1-hydroxy-5-sulphonato-2-naphthyl)azo]-4-sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]benzene-1,4-disulphonate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee compliance with your technical specifications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

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