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5-Amino-1-naphthalenesulfonic acid Structure

5-Amino-1-naphthalenesulfonic acid

Chemical 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
CAS DataBase Reference 84-89-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII W70WC365OD
EPA Substance Registry System 1-Naphthalenesulfonic acid, 5-amino- (84-89-9)

Safety

Symbol(GHS) GHS hazard pictogramsGHS hazard pictograms
Signal wordDanger
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
NFPA 704:
0
1 0

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