4-Pyridazinecarboxylic acid methyl ester
[CAS# 34231-77-1]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyridazine
• Name: 4-Pyridazinecarboxylic acid methyl ester
• Synonyms: 4-Methoxycarbonylpyridazine; Methyl 4-pyridazinecarboxylate
• Molecular Formula: C₆H₆N₂O₂
• Molecular Weight: 138.12
• CAS Registry Number: 34231-77-1
• EC Number: 851-018-8

Properties

• Solubility: Freely soluble (130 g/L) (25 ºC), Calc.^*
• Density: 1.213±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 63 ºC^**
• Boiling point: 281.3±13.0 ºC (760 Torr), Calc.^*
• Flash point: 123.9±19.8 ºC, Calc.^*

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

^** Robba, Max; Ann. Chim. (Paris) 1960, V5, P351-79.

Safety Data

Hazard Classification

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