![Molecular structure of 3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 260273-82-3)](/images/chem_structures_svg/251/260273-82-3.svg)
3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
Also known as: 3-(2-Chloroethyl)-2-methyl-9-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one (Paliperidone), 3-(2-Chloroethyl)-2-methyl-9-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one, 4H-Pyrido[1,2-a]pyrimidin-4-one, 3-(2-chloroethyl)-9-hydroxy-2-methyl-, 9-Hydroxy-3-(2-chloroethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one, MFCD11110969
3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 260273-82-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H11ClN2O2 and a molecular weight of 238.670 g/mol. Key properties include a boiling point of 413.1±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 203.6±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 260273-82-3
- Jingsj CID
- J-1605007-0
- Molecular Formula
- C11H11ClN2O2
- Molecular Weight
- 238.670 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 413.1±55.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 203.6±31.5 °C |
| Exact Mass | 238.050903 |
| PSA | 54.60000 |
| LogP | 1.66 |
| Vapor Pressure | 0.0±2.2 mmHg at 25°C |
| Refractive Index | 1.635 |
Frequently Asked Questions
What is the CAS number of 3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one?
The CAS number of 3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is 260273-82-3.
What are the molecular formula and molecular weight of 3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one?
3-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one has molecular formula C11H11ClN2O2 and molecular weight 238.670 g/mol.
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-(2-Chloroethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 260273-82-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1605007-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.