5-Hydroxy-1H-pyrazole-3-carboxylic acid ethyl ester
[CAS# 85230-37-1]

Identification

• Name: 5-Hydroxy-1H-pyrazole-3-carboxylic acid ethyl ester
• Synonyms: Ethyl 5-hydroxy-1H-pyrazole-3-carboxylate
• Molecular Formula: C₆H₈N₂O₃
• Molecular Weight: 156.14
• CAS Registry Number: 85230-37-1
• EC Number: 861-097-0

Properties

• Solubility: Slightly soluble (4.2 g/L) (25 ºC), Calc.^*
• Density: 1.371±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 167-168 ºC (ethanol )^**

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

^** Ochi, Hisao; Chemical & Pharmaceutical Bulletin 1983, V31(4), P1228-34.

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