Description

Benzenesulfonamide, 2-[(4-Hydroxy-8-Methoxy-1-Naphthalenyl)Azo]-5-Nitro-, Ion(1-) (9Ci) is a specialized azo dye intermediate and functional chemical compound. This product matters for its role as a precise chromophore and building block in the synthesis of high-performance dyes and pigments. It is primarily needed by manufacturers in the dye and pigment, specialty chemical, and advanced material research sectors seeking consistent quality for complex formulations.

Application

• Primary intermediate for the synthesis of high-value azo dyes and pigments.
• Key chromophore component in the production of specialty colorants for inks and coatings.
• Research and development of novel functional dyes for non-textile applications.
• Potential use in the formulation of analytical reagents and indicators in laboratory settings.
• Building block for advanced organic materials and chemical sensors.
• Specialized applications in photographic and imaging chemicals.

Basic Information

Product Name	Benzenesulfonamide, 2-[(4-Hydroxy-8-Methoxy-1-Naphthalenyl)Azo]-5-Nitro-, Ion(1-) (9Ci)
CAS No.	71816-18-7
Molecular Formula	C17H12N4O6S-
Molecular Weight	400.37 g/mol (anion)
Synonyms	2-[(4-Hydroxy-8-methoxy-1-naphthyl)azo]-5-nitrobenzenesulfonamide anion; 5-Nitro-2-[(4-hydroxy-8-methoxy-1-naphthalenyl)azo]benzenesulfonamide ion(1-); Benzenesulfonamide, 2-[(4-hydroxy-8-methoxy-1-naphthalenyl)azo]-5-nitro-, ion(1-); Azo dye intermediate 71816-18-7; 1-Naphthalenesulfonamide derivative; Light-sensitive azo compound; Sulfonamide azo dye precursor.
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is controlled against strict in-house specifications for identity, purity, and consistency. Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, handling should minimize exposure to strong light sources.

Specification

Item	Specification
Appearance	Contact for details
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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