Sodium 4-amino-1-naphthalenesulfonate

• CAT Number: M069165
• CAS Number: 130-13-2
• Molecular Formula: C10H8NNaO3S
• Molecular Weight: 245.23
• Purity: ≥95%
• Synonyms: Sodium naphthionate; sodium 4-aminonaphthalene-1-sulfonate; Sodium 4-amino-1-naphthalenesulfonate; Naphthemol
• Storage: Room temperature
• IUPAC Name: sodium;4-aminonaphthalene-1-sulfonate
• InChI: InChI=1S/C10H9NO3S.Na/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9;/h1-6H,11H2,(H,12,13,14);/q;+1/p-1
• InChIKey: JWSRMCCRAJUMLX-UHFFFAOYSA-M
• SMILES: C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N.[Na+]

Sodium 4-amino-1-naphthalenesulfonate (Cat No.: M069165) is an aromatic sulfonated amine compound derived from naphthalene. This water-soluble, orange to reddish crystalline solid contains an amino group at the 4-position and a sulfonate group at the 1-position, making it reactive in diazotization and azo coupling reactions. It is primarily used as an intermediate in the synthesis of azo dyes, pigments, and fluorescent compounds. Its strong chromophoric properties and high solubility make it valuable in textile, ink, and analytical chemistry applications.

Reference

1. Gimeno, R. A., et al. "Determination of naphthalenesulfonates in water by on-line ion-pair solid-phase extraction and ion-pair liquid chromatography with fast-scanning fluorescence detection." Journal of Chromatography A 890.2 (2000): 289-294.