1,2-Dihydro-5-nitro-3H-1,2,4-triazol-3-one
[CAS# 932-64-9]

Identification

• Name: 1,2-Dihydro-5-nitro-3H-1,2,4-triazol-3-one
• Synonyms: 3-Nitro-1,2,4-triazol-5-one; 3-Nitro-1,2,4-triazole-5-one; 5-Nitro-2,4-dihydro-1,2,4-triazol-3-one; 5-Nitro-2,4-dihydro-3H-1,2,4-triazol-3-one; 5-Oxo-3-nitro-1,2,4-triazole; NSC 119860; NTO; NTO (explosive)
• Molecular Formula: C₂H₂N₄O₃
• Molecular Weight: 130.06
• CAS Registry Number: 932-64-9
• EC Number: 213-254-4

Properties

• Solubility: Slightly soluble (5.6 g/L) (25 °C), Calc.^*
• Density: 1.92 g/cm^3**
• Melting point: 270-271 °C^***

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** Zeng, Zhuo

^*** Schmidt, J.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Explosives	Expl.	1.1	H201
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335