3-Bromo-4-methyl-1H-pyrazole
[CAS# 5932-20-7]

Identification

• Name: 3-Bromo-4-methyl-1H-pyrazole
• Molecular Formula: C₄H₅BrN₂
• Molecular Weight: 161.00
• CAS Registry Number: 5932-20-7
• EC Number: 832-170-4

Properties

• Solubility: Slightly soluble (1.2 g/L) (25 ºC), Calc.^*
• Density: 1.723±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 127-128 ºC (water ethanol )^**
• Boiling point: 271.6±20.0 ºC (760 Torr), Calc.^*
• Flash point: 118.0±21.8 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2016 ACD/Labs)

^** Huttel, Rudolf; Justus Liebigs Annalen der Chemie 1955, V593, P179-200.

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
Eye irritation	Eye Irrit.	2A	H319
Acute toxicity	Acute Tox.	4	H302