5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one

Also known as: 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one, 5,7-dichloro-3H-pyrido[4,3-d]pyrimidin-4-one, 5,7-dichloro-1H-pyrido[4,3-d]pyrimidin-4-one, 5,7-dichloro-3H,4H-pyrido[4,3-d]pyrimidin-4-one, Pyrido[4,3-d]pyrimidin-4(3H)-one, 5,7-dichloro-, 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)

5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one (CAS 918898-11-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H3Cl2N3O and a molecular weight of 216.024 g/mol. Key properties include a boiling point of 508.4±50.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 261.3±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 918898-11-0
Jingsj CID: J-1377619-7
Molecular Formula: C₇H₃Cl₂N₃O
Molecular Weight: 216.024 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	508.4±50.0 °C at 760 mmHg
Density	1.8±0.1 g/cm3
Flash Point	261.3±30.1 °C
Exact Mass	214.965317
PSA	58.64000
LogP	0.63
Vapor Pressure	0.0±1.3 mmHg at 25°C
Refractive Index	1.765

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 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one?

The CAS number of 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one is 918898-11-0.

What are the molecular formula and molecular weight of 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one?

5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one has molecular formula C7H3Cl2N3O and molecular weight 216.024 g/mol.

What are the upstream and downstream products of 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one?

For 5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one, Upstream Products: 4-Amino-2,6-dichloronicotinamide, Triethyl orthoformate, tert-Butyl (2,6-dichloropyridin-4-yl)carbamate.

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. "5,7-Dichloropyrido[4,3-d]pyrimidin-4(3H)-one (CAS 918898-11-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377619-7 (accessed 2026-11-09).

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