Product Name

  • Name

    1,2,3-1H-Triazole

  • EINECS 206-022-9
  • CAS No. 288-36-8
  • Article Data79
  • CAS DataBase
  • Density 1.274 g/cm3
  • Solubility Soluble in water
  • Melting Point 23-25 °C(lit.)
  • Formula C2H3N3
  • Boiling Point 203.001 °C at 760 mmHg
  • Molecular Weight 69.0659
  • Flash Point 107.222 °C
  • Transport Information
  • Appearance clear colorless liquid
  • Safety 37/39-26-36
  • Risk Codes 36/37/38-63-22
  • Molecular Structure Molecular Structure of 288-36-8 (1,2,3-1H-Triazole)
  • Hazard Symbols IrritantXi
  • Synonyms v-Triazole(7CI,8CI);1,2,3-Triazole;2,3-Diazapyrrole;Pyrrodiazole;Triazacyclopentadiene;
  • PSA 41.57000
  • LogP -0.19530

1,2,3-1H-Triazole Chemical Properties

Molecular Structure:

Molecular Formula: C2H3N3
Molecular Weight: 69.0653
IUPAC Name: 2H-Triazole
Synonyms of 1,2,3-1H-Triazole (CAS NO.288-36-8): 1H-1,2,3-Triazole
CAS NO: 288-36-8
Product Categories: Building Blocks ; Heterocyclic Building Blocks ; Triazoles
Melting point: 23-25 °C 
Index of Refraction: 1.534
Molar Refractivity: 16.86 cm3
Molar Volume: 54.2 cm3
Surface Tension: 67.1 dyne/cm
Density: 1.274 g/cm3
Flash Point: 100.7 °C
Enthalpy of Vaporization: 42.13 kJ/mol
Boiling Point: 203 °C at 760 mmHg
Vapour Pressure: 0.404 mmHg at 25°C 
Water Solubility: soluble
BRN: 104766

1,2,3-1H-Triazole Uses

 1,2,3-1H-Triazole (CAS NO.288-36-8) is used in the synthesis of side-chain of semi-synthetic β-lactam antibiotics.

1,2,3-1H-Triazole Safety Profile

Safety Information of 1,2,3-1H-Triazole (CAS NO.288-36-8):
Hazard Codes: Xi,Xn 
Risk Statements: 36/37/38-63-36-22
36/37/38: Irritating to eyes, respiratory system and skin 
63: Possible risk of harm to the unborn child
36: Irritating to the eyes
22: Harmful if swallowed  
Safety Statements: 37/39-26-36/37
37/39: Wear suitable gloves and eye/face protection 
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36/37: Wear suitable protective clothing and gloves  
WGK Germany: 3
Hazard Note: Irritant

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