Description

3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonaphthyl]Azo]-6-Sulphonaphthyl]Azo]Naphthalene-1,5-Disulphonic Acid is a high-purity, polyfunctional azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulphonic acid groups and a chlorotriazine moiety, provides exceptional reactivity and binding properties for creating vivid and durable colorants. This compound is essential for manufacturers requiring advanced, high-performance dyes and pigments. Primary industrial users include the textile, ink, and specialty chemical synthesis sectors.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-grade reactive dyes used in textile coloring, particularly for cotton and cellulose fibers.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, where color fastness and stability are critical.
• Functional Dye Production: Serves as a precursor for dyes used in specialized applications such as laser printing, optical data storage, and liquid crystal displays (LCDs).
• Research & Development: Employed in chemical R&D for synthesizing novel chromophores and studying azo dye chemistry and photophysical properties.
• Analytical Chemistry: Can be utilized as a complexometric agent or a colored marker in certain analytical and biochemical assays.

Basic Information

Item	Details
Product Name	3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonaphthyl]Azo]-6-Sulphonaphthyl]Azo]Naphthalene-1,5-Disulphonic Acid
CAS No.	93858-31-2
Molecular Formula	C33H21ClN10O12S4
Molecular Weight	921.28 g/mol
Synonyms	Acid Red 337; C.I. 18105; 3-[[4-[[4-[(4-Amino-6-chloro-s-triazin-2-yl)amino]-5-sulfo-1-naphthyl]azo]-6-sulfo-1-naphthyl]azo]-1,5-naphthalenedisulfonic acid; Reactive Dye Intermediate AR-337; 93858-31-2; 1,5-Naphthalenedisulfonic acid, 3-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulfo-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-
EINECS	Contact for details

Quality Control

Our production of 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-5-Sulphonaphthyl]Azo]-6-Sulphonaphthyl]Azo]Naphthalene-1,5-Disulphonic Acid adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. The material undergoes rigorous analytical testing, including HPLC for assay and impurity profiling. Certificates of Analysis (COA) documenting identity, purity, and key physical-chemical parameters are provided with every shipment to support your quality assurance processes.

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 acids and incompatible organic solvents. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, alkaline solutions

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