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1,4-Dihydroxy-2-naphthoic acid Structure

1,4-Dihydroxy-2-naphthoic acid

Chemical Properties

Melting point 220 °C (dec.) (lit.)
Boiling point 461.7±40.0 °C(Predicted)
Density  1.535±0.06 g/cm3(Predicted)
storage temp.  Sealed in dry,Room Temperature
form  powder to crystal
pka 2.89±0.30(Predicted)
color  White to Amber to Dark green
Water Solubility  Slightly soluble in water.
CAS DataBase Reference 31519-22-9(CAS DataBase Reference)
FDA UNII 1U77MR5Q7O
EPA Substance Registry System 2-Naphthalenecarboxylic acid, 1,4-dihydroxy- (31519-22-9)

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-37/39
WGK Germany  3
TSCA  Yes
HS Code  29182900
NFPA 704:
0
2 0

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