1(2H)-Phthalazinone
2,3-二氮杂萘酮
Also known as: phthalazone, 1,2-dihydro-1-oxophthalazine, benzo[d]pyridazin-1(2H)-one, 1-oxophthalazine, 1-phthalazinol, phthalazin-1(2H)-one, 2H-phthalazin-1-one
- CAS No.
- 119-39-1
- Jingsj CID
- J-973855-7
- Molecular Formula
- C8H6N2O
- Chinese Name
- 2,3-二氮杂萘酮
- Molecular Weight
- 146.146 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 183-185 °C(lit.) |
|---|---|
| Boiling Point | 423.4±18.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 209.9±21.2 °C |
Frequently Asked Questions
What is the CAS number of 1(2H)-Phthalazinone?
119-39-1
What are the molecular formula and molecular weight of 1(2H)-Phthalazinone?
C8H6N2O, molecular weight 146.146 g/mol
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026