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99-10-5

Name 3,5-Dihydroxybenzoic acid
CAS 99-10-5
EINECS(EC#) 202-730-7
Molecular Formula C7H6O4
MDL Number MFCD00002512
Molecular Weight 154.12
MOL File 99-10-5.mol
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Chemical Properties

Appearance white to light yellow crystal powder
Melting point  236-238 °C (dec.) (lit.)
Boiling point  237.46°C (rough estimate)
density  1.3725 (rough estimate)
refractive index  1.6400 (estimate)
Fp  200 °C
storage temp.  Store below +30°C.
solubility  Soluble in 50 mg/mL, 95% Ethanol.
form  Powder
pka 4.04(at 25℃)
color  Off-white to beige
PH 2.3 (10g/l, H2O, 25℃)
Water Solubility  84 g/L (20 ºC)
BRN  2207864
LogP 0.860
CAS DataBase Reference 99-10-5(CAS DataBase Reference)
EPA Substance Registry System Benzoic acid, 3,5-dihydroxy- (99-10-5)

Safety Data

Hazard Codes  Xi
Risk Statements 
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 .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  1
RTECS  VH3708000
Autoignition Temperature >500 °C DIN 51794
Hazard Note  Irritant
TSCA  Yes
HS Code  29182990
Toxicity
LD50 orally in Rabbit: 4160 mg/kg

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