Description

5,6'-Iminobis(1-Hydroxy-2-Naphthalenesulfonic Acid) is a specialized organic intermediate featuring a naphthalene core functionalized with sulfonic acid and hydroxyl groups. This compound is valued for its chelating properties and its role as a precursor in the synthesis of dyes, pigments, and complexing agents. It is primarily utilized by manufacturers in the chemical, textile, and specialty materials industries for research and production-scale applications.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of azo dyes, acid dyes, and other complex organic colorants.
• Metal Chelating Agent: Used in formulations for water treatment, metal cleaning, and as a component in analytical chemistry reagents.
• Pharmaceutical Synthesis: Serves as an intermediate in the research and development of certain active pharmaceutical ingredients (APIs).
• Photographic Chemicals: Employed in the production of specialized chemicals for photographic and imaging applications.
• Corrosion Inhibitor Formulation: A component in specialty chemical blends designed to protect metal surfaces.
• Research & Development: Used in academic and industrial R&D for exploring new organic reactions and material properties.

Basic Information

Product Name	5,6'-Iminobis(1-Hydroxy-2-Naphthalenesulfonic Acid)
CAS No.	73816-77-0
Molecular Formula	C₂₀H₁₅NO₈S₂
Molecular Weight	461.47 g/mol
Synonyms	5,6'-Iminodi(1-hydroxy-2-naphthalenesulfonic acid); 1-Hydroxy-2-naphthalenesulfonic acid, iminobis-; 5,6'-Iminobis(1-naphthol-2-sulfonic acid); 5,6'-Iminodi-1-naphthol-2-sulfonic acid; IHNS; Bis(1-hydroxy-2-naphthalenesulfonic acid) imine; 5,6'-Iminobis(1-hydroxy-2-naphthalene sulfonic acid)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Standard quality parameters include purity (Assay), identification, and control of key impurities. 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 room temperature (15-25°C). Due to its hygroscopic nature, protect from moisture and store under dry conditions.

Specification

Item	Specification
Appearance	Yellow to brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals	≤ 20 ppm

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