3-Methyl-1H-pyrazole-4-carboxylic acid
[CAS# 40704-11-8]

Identification

• Name: 3-Methyl-1H-pyrazole-4-carboxylic acid
• Synonyms: 3-Methylpyrazole-4-carboxylic acid
• Molecular Formula: C₅H₆N₂O₂
• Molecular Weight: 126.11
• CAS Registry Number: 40704-11-8
• EC Number: 828-300-4

Properties

• Solubility: Slightly soluble (6.1 g/L) (25 ºC), Calc.^*
• Density: 1.404±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 230 ºC (ethanol water )^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Bajnati, Abdelilah; Bulletin de la Societe Chimique de France 1988, (3), P540-7.

Safety Data

Hazard Classification

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