Description

Ammonium 7-Hydroxynaphthalenesulphonate is an important ammonium salt derivative of a naphthalene sulfonic acid. This compound serves as a key intermediate in the synthesis of dyes, pigments, and specialty chemicals, valued for its functional sulfonate and hydroxyl groups. It is primarily utilized by manufacturers in the dye and pigment, pharmaceutical, and fine chemical industries for producing colorants and other functional molecules.

Application

• Dye and Pigment Intermediate: A crucial building block for the synthesis of azo dyes, acid dyes, and reactive dyes, imparting color and solubility properties.
• Pharmaceutical Synthesis: Used as an intermediate in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Employed in organic synthesis and as a standard or reagent in laboratory-scale chemical research.
• Textile Auxiliaries: Can be used in the formulation of specialty chemicals for textile processing and finishing.
• Photographic Chemicals: Finds application as a component in certain photographic developers and chemicals.
• Corrosion Inhibitor Formulation: Used in the production of specialty corrosion inhibitors for industrial water treatment systems.

Basic Information

Product Name	Ammonium 7-Hydroxynaphthalenesulphonate
CAS No.	82080-98-6
Molecular Formula	C₁₀H₁₁NO₄S
Molecular Weight	241.26 g/mol
Synonyms	7-Hydroxynaphthalene-1-sulfonic acid ammonium salt; 1-Naphthalenesulfonic acid, 7-hydroxy-, ammonium salt; Ammonium 7-hydroxynaphthalene-1-sulfonate; 7-Amino-1-naphthalenesulfonic acid ammonium salt derivative; Azogeramine intermediate
EINECS	Contact for details

Quality Control

Our Ammonium 7-Hydroxynaphthalenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided and 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 room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 1.5%

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