Description

Benzoic acid, 2-hydroxy-, monosodium salt, coupled with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine and diazotized 4-nitrobenzenamine, sodium salt is a complex, high-purity azo dye intermediate designed for demanding industrial synthesis. This compound matters because it provides the essential chromophore structure required for producing vivid and stable colorants. It is primarily needed by manufacturers in the textile, ink, and specialty pigment industries seeking reliable, high-performance intermediates for their production processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-grade, complex azo dyes for textiles and fabrics.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Functional Dye Synthesis: Applicable in creating dyes for specialized applications, including paper coloring and leather finishing.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromogenic compounds and studying azo coupling reactions.

Basic Information

Product Name	Benzoic acid, 2-hydroxy-, monosodium salt, coupled with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine and diazotized 4-nitrobenzenamine, sodium salt
CAS No.	90218-94-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Azoic Coupling Component; Diazotized 4-Nitroaniline coupled with Salicylic acid sodium salt and H-acid coupled with Diazotized 2-(4-Aminophenyl)-1H-benzimidazol-5-amine; Azo dye intermediate based on H-acid and salicylic acid; Sodium 2-hydroxybenzoate coupled diazo compound; Complex azo coupling component; 90218-94-3; Azoic Coupling Component (derived)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. Quality is verified through analytical methods including HPLC and spectrophotometry to confirm identity, purity, and strength. Certificates of Analysis (COA) detailing all critical parameters are available upon request to support your quality assurance protocols.

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 to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Colored Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Partially Soluble

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