5-Amino-1-naphthalenesulfonic acid , 90% , 84-89-9

Synonym(s):
1-Naphthylamine-5-sulfonic acid;Laurent’s acid

CAS NO.：84-89-9

Empirical Formula: C10H9NO3S

Molecular Weight: 223.25

MDL number: MFCD00014315

EINECS: 201-571-0

PRODUCT Properties

• Melting point: >300°C
• Boiling point: 220°C (rough estimate)
• Density: 1.3588 (rough estimate)
• refractive index: 1.6500 (estimate)
• solubility: Aqueous Base (Slightly), DMSO (Slightly)
• pka: pK1: 3.69 (25°C)
• form: powder to crystal
• color: Purple to Dark purple to Dark red
• Water Solubility: Soluble in hot water.
• Merck: 14,6404
• BRN: 2214149

Description and Uses

5-Aminonaphthalene-1-sulfonic acid is an deriva- tizing agents in the precolumn derivatization of some chiral phenoxy acid. Cu(II) based on a dansyl derivative was synthesized with 29.2% overall yield by a seven-step synthetic procedure from the readily available starting material 5-aminonaphthalene-1-sulfonic acid.

Safety

• Symbol(GHS): GHS05,GHS07
• Signal word: Danger
• Hazard statements: H335-H312-H314-H332-H315-H319
• Precautionary statements: P280g-P264-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P280-P305+P351+P338-P310
• Hazard Codes: C
• Risk Statements: 20/21/22-34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 2585 8/PG 3
• WGK Germany: 3
• RTECS: QK1270500
• TSCA: Yes
• HS Code: 2921.45.2000
• HazardClass: 8
• PackingGroup: III