Description

2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis5-4-chloro-6-methyl2-(methylamino)-2-oxoethylamino-1,3,5-triazin-2-ylamino-2-sulfophenylazo-5-hydroxy-, lithium potassium sodium salt is a high-performance, water-soluble azo dye intermediate with a complex, multi-functional structure. This compound is engineered to deliver exceptional color strength and stability, making it a critical component for creating advanced, high-value dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, durable colors with specific technical properties.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton, wool, and nylon, offering excellent wash and light fastness.
• Specialty Ink Formulations: Used in the production of inks for digital textile printing and high-performance inkjet applications requiring precise color gamut and stability.
• Functional Pigments for Coatings: Imparts specific coloristic and functional properties in industrial and automotive coatings where durability is paramount.
• Research & Development: Serves as a sophisticated chemical entity in R&D labs for developing novel chromophores and studying dye-polymer interactions.
• Paper Coloring: Employed in the manufacture of specialty colored papers where high color yield and consistency are required.
• Biological Staining: Potential use as a precursor for developing stains used in histological and cytological applications in life sciences.

Basic Information

Item	Details
Product Name	2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis5-4-chloro-6-methyl2-(methylamino)-2-oxoethylamino-1,3,5-triazin-2-ylamino-2-sulfophenylazo-5-hydroxy-, lithium potassium sodium salt
CAS No.	205764-96-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Black 31; Reactive Black 31; Lithium potassium sodium salt of 4-amino-3,6-bis[[5-[(4-chloro-6-methyl-2-(methylamino)-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic acid; Triazinyl azo dye intermediate; Complex metal salt azo dye; Multifunctional naphthalene-based dye
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical methods including HPLC for purity and identity confirmation. A Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications 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 tightly sealed after use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility (in Water)	Completely soluble
Heavy Metals (as Pb)	Max. 20 ppm

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