Description

1,4-Benzenedisulfonic acid, 2-[[4-[[2-[(aminocarbonyl) amino]-4-[[4-chloro-6-[(2,5-disulfophenyl)amino] -1,3,5-triazin-2-yl]amino]phenyl]azo]-2,5-dimethylpheny l]azo]-, potassium sodium salt is a high-purity, water-soluble dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple azo and triazine groups, provides excellent chromophoric properties and binding affinity. This compound is primarily sought after by manufacturers in the textile, ink, and specialty chemical sectors for producing vivid and stable colorants.

Application

• Textile Dyeing: As a key intermediate for synthesizing reactive and direct dyes for cotton, wool, and nylon fibers.
• Ink Manufacturing: Used in the production of high-performance pigments for inks in packaging, printing, and writing instruments.
• Paper Coloring: Employed in the manufacture of dyes for specialty and decorative papers.
• Leather Industry: Serves as an intermediate for dyes used in the coloring of leather goods.
• Analytical Chemistry: Potential use as a chromogenic agent or complexometric indicator in specific analytical methods.
• Research & Development: Utilized in academic and industrial R&D for developing new polymeric dyes and functional materials.

Basic Information

Product Name	1,4-Benzenedisulfonic acid, 2-[[4-[[2-[(aminocarbonyl) amino]-4-[[4-chloro-6-[(2,5-disulfophenyl)amino] -1,3,5-triazin-2-yl]amino]phenyl]azo]-2,5-dimethylpheny l]azo]-, potassium sodium salt
CAS No.	118578-13-5
Molecular Formula	C31H22ClN11O12S4•K•Na
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 Potassium Sodium Salt; C.I. Reactive Black 5; Remazol Black B; 1,4-Benzenedisulfonic acid, 2,2'-(1-triazinyl)bis(amino) derivative; Potassium sodium 2-[[4-[[2-carbamoylamino-4-[[4-chloro-6-[(2,5-disulfophenyl)amino]-1,3,5-triazin-2-yl]amino]phenyl]azo]-2,5-dimethylphenyl]azo]-1,4-benzenedisulfonate; Azo dye intermediate 118578-13-5; 2-[[4-[[2-(Aminocarbonyl)amino]-4-[[4-chloro-6-[(2,5-disulfophenyl)amino]-1,3,5-triazin-2-yl]amino]phenyl]azo]-2,5-dimethylphenyl]azo]-1,4-benzenedisulfonic acid potassium sodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet customer specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and solubility.

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 blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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