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533-73-3

Name 1,2,4-Benzenetriol
CAS 533-73-3
EINECS(EC#) 208-575-1
Molecular Formula C6H6O3
MDL Number MFCD00002198
Molecular Weight 126.11
MOL File 533-73-3.mol

Chemical Properties

Appearance Gray powder
Melting point  140 °C (subl.) (lit.)
Boiling point  194.21°C (rough estimate)
density  1.45 g/cm3 (20℃)
refractive index  1.5627 (estimate)
storage temp.  Keep Cold
solubility  DMSO (Sparingly), Methanol (Slightly)
form  Solid
pka 9.58±0.10(Predicted)
color  Plates from Et2O
Water Solubility  freely soluble
Sensitive  Air Sensitive
Usage A metabolite of benzene.
Merck  14,1073
BRN  2042863
Stability: Light Sensitive, Moisture Sensitive
CAS DataBase Reference 533-73-3(CAS DataBase Reference)
NIST Chemistry Reference 1,2,4-Benzenetriol(533-73-3)
EPA Substance Registry System 533-73-3(EPA Substance)

Safety Data

Hazard Codes  Xn,Xi
Risk Statements 
R22:Harmful if swallowed.
R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes.
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S22:Do not breathe dust .
WGK Germany  3
RTECS  DC4200000
Hazard Note  Irritant/Keep Cold/Air Sensitive
TSCA  Yes
HS Code  29072990
Safety Profile
Poison by subcutaneous and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
Toxicity
oms-hmn:lym 50 mmol/L CNREA8 45,2471,85

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