3-Chloro-1H-pyrazole
[CAS# 14339-33-4]

Identification

• Name: 3-Chloro-1H-pyrazole
• Synonyms: 3-Chloropyrazole; 5-Chloropyrazole
• Molecular Formula: C₃H₃ClN₂
• Molecular Weight: 102.52
• CAS Registry Number: 14339-33-4
• EC Number: 813-260-2

Properties

• Solubility: Slightly soluble (2.2 g/L) (25 ºC), Calc.^*
• Density: 1.405±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 40 ºC^**
• Boiling point: 250.9±13.0 ºC (760 Torr), Calc.^*
• Flash point: 129.8±5.4 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Reimlinger, Hans; Chemische Berichte 1966, V99(10), P3350-7.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302
Eye irritation	Eye Irrit.	2A	H319
Eye irritation	Eye Irrit.	2	H319