1-Ethyl-1H-pyrazole-5-carboxylic acid
[CAS# 400755-43-3]

Identification

• Name: 1-Ethyl-1H-pyrazole-5-carboxylic acid
• Molecular Formula: C₆H₈N₂O₂
• Molecular Weight: 140.14
• CAS Registry Number: 400755-43-3
• EC Number: 673-166-0

Properties

• Solubility: Slightly soluble (4.5 g/L) (25 °C), Calc.^*
• Density: 1.27±0.1 g/cm³ (20 °C 760 Torr), Calc.^*

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

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