Description

3-[[4-[5-[[4-Fluoro-6-[(2-methylphenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenylazo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol]-1-yl]-1,5-naphthalenedisulfonic acid is a high-purity, complex organic dye intermediate essential for synthesizing high-performance colorants. Its molecular structure provides excellent chromophoric properties and binding affinity, making it a critical component for creating vivid and stable dyes. This compound is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to produce advanced azo dyes and pigments.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for cotton and cellulose fiber dyeing.
• Textile Colorant Production: Used in manufacturing azo-based dyes that offer excellent wash and light fastness for textiles.
• Ink and Pigment Formulation: Serves as a precursor for producing colorants used in printing inks and industrial pigments.
• Specialty Chemical Synthesis: Employed in research and development for creating novel chromophores and functional dyes.
• Laboratory Reagent: Used as a standard or intermediate in analytical and synthetic chemistry research.

Basic Information

Item	Detail
Product Name	3-[[4-[5-[[4-Fluoro-6-[(2-methylphenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenylazo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol]-1-yl]-1,5-naphthalenedisulfonic acid
CAS No.	66209-87-8
Molecular Formula	C31H24FN9O10S3
Molecular Weight	821.76 g/mol
Synonyms	Acid Red 337; C.I. 17215; 1,5-Naphthalenedisulfonic acid, 3-[[4-[5-[[4-fluoro-6-[(2-methylphenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenylazo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-; Reactive Red Dye Intermediate; Azo Dye Intermediate CAS 66209-87-8; 3-(4-(5-((4-Fluoro-6-(o-tolylamino)-1,3,5-triazin-2-yl)amino)-2-sulfophenylazo)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)naphthalene-1,5-disulfonic acid
EINECS	Contact for details

Quality Control

Our 3-[[4-[5-[[4-Fluoro-6-[(2-methylphenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenylazo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol]-1-yl]-1,5-naphthalenedisulfonic acid is produced under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for industrial synthesis. Each lot is analyzed using advanced techniques like HPLC and NMR to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

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

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