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1,2,4-Benzenetriol

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1,2,4-Benzenetriol Basic information

Product Name:
1,2,4-Benzenetriol
Synonyms:
  • OXYHYDROQUINONE
  • 1,2,4-TRIHYDROXYBENZENE
  • 1,2,4-BENZENETRIOL
  • 1,3,4-Benzenetriol
  • 1,3,4-Trihydroxybenzene
  • 2,5-Dihydroxyphenol
  • 2-Hydroxy-1,4-hydroquinone
  • Hydroquinone, hydroxy-
CAS:
533-73-3
MF:
C6H6O3
MW:
126.11
EINECS:
208-575-1
Product Categories:
  • Aromatic Hydrocarbons (substituted) & Derivatives
  • Aromatics Compounds
  • Aromatics
  • Metabolites & Impurities
Mol File:
533-73-3.mol
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1,2,4-Benzenetriol Chemical Properties

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
pka
9.58±0.10(Predicted)
color 
Plates from Et2O
Water Solubility 
freely soluble
Sensitive 
Air Sensitive
Merck 
14,1073
BRN 
2042863
CAS DataBase Reference
533-73-3(CAS DataBase Reference)
NIST Chemistry Reference
1,2,4-Benzenetriol(533-73-3)
EPA Substance Registry System
1,2,4-Benzenetriol (533-73-3)
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Safety Information

Hazard Codes 
Xn,Xi
Risk Statements 
22-37/38-41-36/37/38-20/21/22
Safety Statements 
26-39-36/37/39-22
WGK Germany 
3
RTECS 
DC4200000
Hazard Note 
Irritant/Keep Cold/Air Sensitive
TSCA 
Yes
HS Code 
2907 29 00
Toxicity
oms-hmn:lym 50 mmol/L CNREA8 45,2471,85

MSDS

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1,2,4-Benzenetriol Usage And Synthesis

Chemical Properties

Gray powder

Uses

A metabolite of benzene.

Safety Profile

Poison by subcutaneous and intraperitoneal routes. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Crystallise the triol from Et2O or Et2O/EtOH, and dry it in a vacuum. The picrate forms orange-red needles m 96o. [Beilstein 6 H 1087, 6 I 541, 6 II 1071, 6 III 6276.]

1,2,4-Benzenetriol Preparation Products And Raw materials

Raw materials

Preparation Products

1,2,4-BenzenetriolSupplier

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