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1-Amino-2-naphthol-4-sulfonic acid Structure

1-Amino-2-naphthol-4-sulfonic acid

Chemical Properties

Melting point 290 °C (dec.)(lit.)
Density  1.4338 (rough estimate)
refractive index  1.6500 (estimate)
storage temp.  Store below +30°C.
solubility  DMSO (Slightly), Methanol (Slightly)
pka -0.49±0.40(Predicted)
form  Powder
color  White to light pink
Water Solubility  insoluble
Merck  14,454
BRN  2697469
Stability Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents.
InChIKey RXCMFQDTWCCLBL-UHFFFAOYSA-N
CAS DataBase Reference 116-63-2(CAS DataBase Reference)
FDA UNII W46SK3P33G
NIST Chemistry Reference 1-Naphthalenesulfonic acid,4-amino-3-hydroxy-(116-63-2)
EPA Substance Registry System 1-Naphthalenesulfonic acid, 4-amino-3-hydroxy- (116-63-2)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  37/39-26
RIDADR  3265
WGK Germany  3
RTECS  QK1292000
TSCA  Yes
HazardClass  IRRITANT
PackingGroup  III
HS Code  29222100
NFPA 704:
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