5-Chloro-1-methyl-1H-pyrazole-4-carboxylic acid
[CAS# 54367-66-7]

Identification

• Name: 5-Chloro-1-methyl-1H-pyrazole-4-carboxylic acid
• Molecular Formula: C₅H₅ClN₂O₂
• Molecular Weight: 160.56
• CAS Registry Number: 54367-66-7
• EC Number: 672-810-8

Properties

• Solubility: Slightly soluble (3.9 g/L) (25 ºC), Calc.^*
• Density: 1.56±0.1 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 200-203 ºC^**

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

^** Nishioka, Masanori; Journal of Pesticide Science (Tokyo, Japan) 2003, V28(4), P416-421.

Safety Data

Hazard Classification

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