Description

3-[[4-[7-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-5,9-disulpho-2H-naphtho[1,2-d]triazol-2-yl]-2-sulphophenyl]azo]-1,2-dihydro-6-hydroxy-2-oxoisonicotinic acid, sodium salt is a high-purity, complex synthetic dye intermediate with significant functional properties. Its value lies in its precise molecular structure, which provides excellent chromophoric and auxochromic characteristics for demanding technical applications. This compound is essential for manufacturers in the textile, specialty ink, and advanced material coating industries seeking consistent, high-performance colorants and functional additives.

Application

• Textile Dyeing: As a key intermediate for synthesizing high-grade, wash-fast reactive and direct dyes for natural and synthetic fibers.
• Specialty Inks: Used in the formulation of high-performance inks for digital textile printing and security printing applications.
• Functional Coatings: Serves as a colorant or functional additive in coatings for plastics, papers, and other industrial materials.
• Research & Development: A critical building block for academic and industrial R&D in novel chromophores and dye chemistry.
• Analytical Reagents: Potential use as a staining agent or indicator in specific biochemical and analytical methodologies.

Basic Information

Product Name	3-[[4-[7-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-5,9-disulpho-2H-naphtho[1,2-d]triazol-2-yl]-2-sulphophenyl]azo]-1,2-dihydro-6-hydroxy-2-oxoisonicotinic acid, sodium salt
CAS No.	83400-20-8
Molecular Formula	C27H12ClF2N9Na3O13S3
Molecular Weight	Approx. 977.06 g/mol (Contact for exact details)
Synonyms	Sodium 3-[[4-[7-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-5,9-disulfo-2H-naphtho[1,2-d]triazol-2-yl]-2-sulfophenyl]azo]-1,2-dihydro-6-hydroxy-2-oxoisonicotinate; Reactive Dye Intermediate 83400-20-8; C.I. Reactive Orange 107 (related); Triazinyl Azo Dye Intermediate; 5-Chloro-2,6-difluoropyrimidine coupled naphthotriazole azo dye sodium salt; Acid Orange 3G (possible trade name variant); Dye Intermediate CAS 83400-20-8
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A detailed Certificate of Analysis (COA) documenting purity, impurity profile, and physical characteristics is provided with each shipment to guarantee batch-to-batch consistency and traceability.

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 opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content (KF)	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Total impurities: Max. 5.0% Any single impurity: Max. 1.0%

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