Description

6-Amino-5-Hydroxynaphthalene-1-Sulphonic Acid is a high-purity aromatic sulfonic acid derivative, serving as a critical intermediate in the synthesis of complex organic molecules. Its value lies in its bifunctional amino and hydroxyl groups, which enable precise chemical modifications for creating specialized dyes and pigments. This compound is essential for manufacturers in the dyestuff, pharmaceutical, and agrochemical industries seeking to develop products with specific colorant properties or biological activity.

Application

• Dye and Pigment Intermediate: A key building block for the synthesis of azo dyes, acid dyes, and reactive dyes, particularly for textiles and leather.
• Pharmaceutical Synthesis: Used as a precursor in the manufacture of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Production: Employed in the synthesis of specialized herbicides, pesticides, and plant growth regulators.
• Research & Development: Serves as a valuable reagent in organic chemistry research for constructing naphthalene-based compounds.
• Chemical Sensor Development: Utilized in the creation of fluorescent probes and chemosensors due to its aromatic structure.
• Polymer Modification: Acts as a functional monomer or additive to impart specific properties to polymers.

Basic Information

Product Name	6-Amino-5-Hydroxynaphthalene-1-Sulphonic Acid
CAS No.	573-07-9
Molecular Formula	C₁₀H₉NO₄S
Molecular Weight	239.25 g/mol
Synonyms	6-Amino-5-hydroxy-1-naphthalenesulfonic acid; 1-Naphthalenesulfonic acid, 6-amino-5-hydroxy-; 5-Hydroxy-6-amino-1-naphthalenesulfonic acid; 6-Amino-5-naphthol-1-sulfonic acid; 1,6-Cleve's acid (related isomer); 6-Amino-5-hydroxynaphthalene-1-sulfonic acid; 5-Hydroxy-6-aminonaphthalene-1-sulfonic acid; 6-Amino-5-naphthol-2-sulfonic acid (isomer)
EINECS	209-350-5

Quality Control

Our 6-Amino-5-Hydroxynaphthalene-1-Sulphonic Acid is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and research use. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and batch-to-batch consistency.

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, the container must be kept sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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