6-Phenyl-3(2H)-pyridazinone
Also known as: 6-Phenylpyridazin-3(2H)-one, 3-Hydroxy-6-phenylpyridazine, 6-Phenyl-2,3-dihydropyridazin-3-one, 3(2H)-Pyridazinone, 6-phenyl-, 6-Phenylpyridazin-3-ol, 3-Phenyl-1H-pyridazin-6-one, NSC 13399
6-Phenyl-3(2H)-pyridazinone (CAS 2166-31-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O and a molecular weight of 172.183 g/mol. Key properties include a melting point of 201-204ºC(lit.), a boiling point of 403.8ºC at 760mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 198ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2166-31-6
- Jingsj CID
- J-37674-9
- Molecular Formula
- C10H8N2O
- Molecular Weight
- 172.183 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 201-204ºC(lit.) |
|---|---|
| Boiling Point | 403.8ºC at 760mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 198ºC |
| Exact Mass | 172.063660 |
| PSA | 45.75000 |
| LogP | 0.98 |
| Vapor Pressure | 4.24E-07mmHg at 25°C |
| Refractive Index | 1.623 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 6-Phenyl-3(2H)-pyridazinone?
The CAS number of 6-Phenyl-3(2H)-pyridazinone is 2166-31-6.
What are the molecular formula and molecular weight of 6-Phenyl-3(2H)-pyridazinone?
6-Phenyl-3(2H)-pyridazinone has molecular formula C10H8N2O and molecular weight 172.183 g/mol.
What are the upstream and downstream products of 6-Phenyl-3(2H)-pyridazinone?
For 6-Phenyl-3(2H)-pyridazinone, Upstream Products: Acetophenone, Glyoxylic acid, 6-Phenyl-4,5-dihydro-3(2H)-pyridazinone; Downstream Products: 3-Hydrazino-6-phenylpyridazine, 2-Methyl-6-phenylpyridazin-3(2H)-one, 6-phenylpyridazin-3-amine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "6-Phenyl-3(2H)-pyridazinone (CAS 2166-31-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37674-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.