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3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

Also known as: 3-(2-Chloroethyl)-2-methyl-9-hydroxy-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one, 3-(2-Chloroethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one, Paliperidone Intermediate 1, Paliperidone Related Compound C, 4H-Pyrido[1,2-a]pyrimidin-4-one, 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-

3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 130049-82-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H15ClN2O2 and a molecular weight of 242.702 g/mol. Key properties include a melting point of 100-102°C, a boiling point of 389.3±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 189.2±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
130049-82-0
Jingsj CID
J-1919730-9
Molecular Formula
C11H15ClN2O2
Molecular Weight
242.702 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point100-102°C
Boiling Point389.3±52.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point189.2±30.7 °C
Exact Mass242.082199
PSA55.12000
LogP0.26
Vapor Pressure0.0±2.0 mmHg at 25°C
Refractive Index1.635
Storage ConditionsRefrigerator

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one?

The CAS number of 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is 130049-82-0.

What are the molecular formula and molecular weight of 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one?

3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one has molecular formula C11H15ClN2O2 and molecular weight 242.702 g/mol.

What are the upstream and downstream products of 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one?

For 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one, Downstream Products: 9-Keto Risperidone, Paliperidone, Paliperidone Palmitate.

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)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 130049-82-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1919730-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.