3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one
3,4-二氢-2H-吡啶并[1,2-a]嘧啶-2-酮
Also known as: 2H-Pyrido[1,2-a]pyrimidin-2-one, 3,4-dihydro-, 2H-Pyrido[1,2-a]pyrimidin-2-one,3,4-dihydro-, 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE, 3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one, 3,4-dihydropyrido[1,2-a]pyrimidin-2-one, ACID CAPTOR H, Dihydropyridopyrimidinone, EINECS 226-618-2, LABOTEST-BB LT00847264, MFCD00042798
3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one (CAS 5439-14-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8N2O and a molecular weight of 148.162 g/mol. It is also known as 2H-Pyrido[1,2-a]pyrimidin-2-one, 3,4-dihydro-, 2H-Pyrido[1,2-a]pyrimidin-2-one,3,4-dihydro- and 3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE. Key properties include a melting point of 185-187ºC, a boiling point of 271.3±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 117.9±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5439-14-5
- Jingsj CID
- J-29885-2
- Molecular Formula
- C8H8N2O
- Chinese Name
- 3,4-二氢-2H-吡啶并[1,2-a]嘧啶-2-酮
- Molecular Weight
- 148.162 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 185-187ºC |
|---|---|
| Boiling Point | 271.3±23.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 117.9±22.6 °C |
Frequently Asked Questions
What is the CAS number of 3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one?
The CAS number of 3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one is 5439-14-5.
What are the molecular formula and molecular weight of 3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one?
3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one has molecular formula C8H8N2O and molecular weight 148.162 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dihydro-2H-pyrido[1,2-a]pyrimidin-2-one (CAS 5439-14-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29885-2 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.