3-Phenyl-2(1H)-pyrazinone
Also known as: 2(1H)-Pyrazinone, 3-phenyl-, 2-Hydroxy-3-phenylpyrazine, 3-Phenyl-1H-pyrazin-2-one, 3-Phenylpyrazin-2(1H)-one, 3-Phenylpyrazin-2-ol, Ampicillin EP Impurity H, Cefaclor EP Impurity F, 3-Phenyl-1,2-dihydropyrazin-2-one
3-Phenyl-2(1H)-pyrazinone (CAS 2882-18-0) 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 172-174ºC, a boiling point of 457.4±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 230.5±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2882-18-0
- Jingsj CID
- J-1441187-1
- 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 | 172-174ºC |
|---|---|
| Boiling Point | 457.4±40.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 230.5±27.3 °C |
| Exact Mass | 172.063660 |
| PSA | 45.75000 |
| LogP | 0.78 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.618 |
Frequently Asked Questions
What is the CAS number of 3-Phenyl-2(1H)-pyrazinone?
The CAS number of 3-Phenyl-2(1H)-pyrazinone is 2882-18-0.
What are the molecular formula and molecular weight of 3-Phenyl-2(1H)-pyrazinone?
3-Phenyl-2(1H)-pyrazinone has molecular formula C10H8N2O and molecular weight 172.183 g/mol.
What are the upstream and downstream products of 3-Phenyl-2(1H)-pyrazinone?
For 3-Phenyl-2(1H)-pyrazinone, Upstream Products: DL-2-Phenylglycinamide, Phenylglyoxal monohydrate, 2-Phenylpyrazine; Downstream Products: 2-Chloro-6-phenylpyrazine, 2,5-Dichloro-3-phenylpyrazine, 2-chloro-3-phenylpyrazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Phenyl-2(1H)-pyrazinone (CAS 2882-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1441187-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.