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92-70-6

Name 3-Hydroxy-2-naphthoic acid
CAS 92-70-6
EINECS(EC#) 202-180-8
Molecular Formula C11H8O3
MDL Number MFCD00004103
Molecular Weight 188.18
MOL File 92-70-6.mol
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Chemical Properties

Appearance yellow to beige-brown fine crystalline powder
Melting point  218-221 °C(lit.)
Boiling point  283.17°C (rough estimate)
density  1.43 g/cm3 (23℃)
refractive index  1.7160 (estimate)
Fp  >150°C
storage temp.  Sealed in dry,Room Temperature
solubility  0.072g/l practically insoluble
form  Fine Crystalline Powder
pka 3.02±0.30(Predicted)
color  Yellow to beige-brown
Water Solubility  PRACTICALLY INSOLUBLE
λmax 395nm(H2O (pH 3.5))(lit.)
Detection Methods T,NMR
Merck  14,4835
BRN  744100
Uses
Dyes and pigments.
CAS DataBase Reference 92-70-6(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6)
EPA Substance Registry System 92-70-6(EPA Substance)
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Safety Data

Hazard Codes  Xn,Xi
Risk Statements 
R22:Harmful if swallowed.
R36:Irritating to the eyes.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  1
RTECS  QL1755000
TSCA  Yes
HS Code  29182910
Hazardous Substances Data 92-70-6(Hazardous Substances Data)
Toxicity
The acute oral LD50 of 3-Hydroxy-2-naphthoic acid in rats was 823-1040 mg/kg bw.

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