5-Methoxy-3(2H)-pyridazinone
[CAS 123696-01-5]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyridazine
• Name: 5-Methoxy-3(2H)-pyridazinone
• Molecular Formula: C₅H₆N₂O₂
• Molecular Weight: 126.11
• CAS Registry Number: 123696-01-5
• EC Number: 822-643-3

Properties

• Solubility: Soluble (62 g/L) (25 °C), Calc.^*
• Density: 1.30±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 148-150 °C^**

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

^** Sotelo, Eddy

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
Acute toxicity	Acute Tox.	4	H302