3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one

Also known as: 9-(Benzyloxy)-3-(2-chloroethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one, 3-(2-Chloroethyl)-2-methyl-9-benzyloxy-4H-pyrido[1,2-a]pyrimidin-4-one, 4H-Pyrido[1,2-a]pyrimidin-4-one, 3-(2-chloroethyl)-2-methyl-9-(phenylmethoxy)-, 9-Benzyloxy-3-(2-chloroethyl)-2-methylpyrido[1,2-a]pyrimidine-4-one, 3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one, Paliperidone impurity ZY2, Paliperidone impurity 14

3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 147687-17-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H17ClN2O2 and a molecular weight of 328.793 g/mol. Key properties include a melting point of 140-142ºC, a boiling point of 505.0±60.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 259.2±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 147687-17-0
Jingsj CID: J-1327412-9
Molecular Formula: C₁₈H₁₇ClN₂O₂
Molecular Weight: 328.793 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	140-142ºC
Boiling Point	505.0±60.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	259.2±32.9 °C
Exact Mass	328.097870
PSA	43.60000
LogP	3.70
Vapor Pressure	0.0±1.3 mmHg at 25°C
Refractive Index	1.608
Storage Conditions	Refrigerator

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 3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one?

The CAS number of 3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one is 147687-17-0.

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

3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one has molecular formula C18H17ClN2O2 and molecular weight 328.793 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "3-(2-Chloroethyl)-2-methyl-9-(phenylmethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 147687-17-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1327412-9 (accessed 2026-11-09).

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