4-Nitro-1H-pyrazole-3-carboxylic acid ethyl ester
[CAS# 55864-87-4]

Identification

• Name: 4-Nitro-1H-pyrazole-3-carboxylic acid ethyl ester
• Synonyms: Ethyl 4-nitro-1H-pyrazole-3-carboxylate; Ethyl 4-nitropyrazole-3-carboxylate; NSC 360636
• Molecular Formula: C₆H₇N₃O₄
• Molecular Weight: 185.14
• CAS Registry Number: 55864-87-4
• EC Number: 866-055-5

Properties

• Solubility: Very slightly soluble (0.48 g/L) (25 ºC), Calc.^*
• Density: 1.455±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 124-126 ºC (benzene ligroine )^**

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

^** Robins, Roland K.; Journal of the American Chemical Society 1956, V78, P2418-22.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2A	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H302