1-Phenyl-1,2-dihydro-3H-1,2,4-triazol-3-one

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Names

[ CAS No. ]:
4231-68-9

[ Name ]:
1-Phenyl-1,2-dihydro-3H-1,2,4-triazol-3-one

[Synonym ]:
3H-1,2,4-Triazol-3-one, 1,2-dihydro-1-phenyl-
EINECS 224-187-5
1-Phenyl-1H-1,2,4-triazol-3-ol
1-Phenyl-1,2-dihydro-3H-1,2,4-triazol-3-one
MFCD00138713
3-Hydroxy-1-phenyl-1,2,4-triazole
1-PHENYL-3-HYDROXYL-1,2,4-TRIAZOLE

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
392.2±25.0 °C at 760 mmHg

[ Melting Point ]:
277-280

[ Molecular Formula ]:
C8H7N3O

[ Molecular Weight ]:
161.161

[ Flash Point ]:
191.0±23.2 °C

[ Exact Mass ]:
161.058914

[ PSA ]:
50.94000

[ LogP ]:
1.45

[ Vapour Pressure ]:
0.0±0.9 mmHg at 25°C

[ Index of Refraction ]:
1.665

Safety Information

[ Hazard Codes ]:
Xi: Irritant;

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Phenylhydrazine
  • 1-Carbamoyl-2-phenylhydrazin
  • Triethyl orthoformate
  • Formic Acid

DownStream

  • Triethylammonium chloride

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 5-Methyl-1-phenyl-1,2-dihydro-3H-1,2,4-triazol-3-one
  • 5-(3-nitro-phenyl)-1-phenyl-1,2-dihydro-[1,2,4]triazol-3-one
  • 1-phenyl-5-styryl-1,2-dihydro-[1,2,4]triazol-3-one
  • 1-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,2,4]triazol-3-one
  • 1-(6-Fluoro-2-pyridinyl)-1,2-dihydro-3H-1,2,4-triazol-3-one
  • 1H-1,2,4-Triazol-3-ol