Description

5-[[(8-Hydroxy-3,6-Disulpho-1-Naphthyl)Amino]Sulphonyl]Salicylic Acid is a specialized, high-purity organic intermediate featuring a complex aromatic structure with multiple functional groups. This compound is valued for its unique chemical reactivity, particularly as a precursor for synthesizing advanced dyes, pigments, and functional materials. It is essential for manufacturers and R&D laboratories in the fine chemical, specialty dye, and analytical reagent industries seeking reliable, high-quality building blocks for complex synthesis.

Application

• Dye and Pigment Intermediate: A key precursor for the synthesis of complex azo dyes, acid dyes, and metal-complex pigments used in textiles, inks, and coatings.
• Analytical Chemistry Reagent: Utilized as a chelating agent or a chromogenic reagent in spectrophotometric methods for metal ion detection and analysis.
• Fine Chemical Synthesis: Serves as a versatile building block in organic synthesis for pharmaceuticals and advanced material research due to its reactive sulphonyl and hydroxyl groups.
• Functional Material Production: Used in the development of specialty polymers and materials where sulfonated aromatic structures are required for properties like ion exchange or hydrophilicity.

Basic Information

Product Name	5-[[(8-Hydroxy-3,6-Disulpho-1-Naphthyl)Amino]Sulphonyl]Salicylic Acid
CAS No.	68003-34-9
Molecular Formula	C₁₇H₁₃NO₁₀S₃
Molecular Weight	487.44 g/mol
Synonyms	5-[(8-Hydroxy-3,6-disulfo-1-naphthylamino)sulfonyl]salicylic acid; 5-[(8-Hydroxy-3,6-disulfo-1-naphthylamino)sulfonyl]-2-hydroxybenzoic acid; 2-Hydroxy-5-[(8-hydroxy-3,6-disulfo-1-naphthylamino)sulfonyl]benzoic acid; Acid Blue 113 intermediate; C.I. 26360 intermediate; 8-Hydroxy-3,6-disulfo-1-naphthylamino sulfonyl salicylic acid
EINECS	Contact for details

Quality Control

Our production of 5-[[(8-Hydroxy-3,6-Disulpho-1-Naphthyl)Amino]Sulphonyl]Salicylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided to guarantee traceability and compliance with your quality assurance requirements.

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). This product is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Yellow 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.