Pyrido[2,3-d]pyrimidin-4(1H)-one

Also known as: 3H-Pyrido[2,3-d]pyrimidin-4-one, 4-oxo-3,4-dihydropyrido(2,3-d)pyrimidine, 3,4-Dihydropyrido[2,3-d]pyrimidine-4-one, 3-Aza-1,8-naphthyridine-4(3H)-one, Pyrido[2,3-d]pyrimidin-4(3H)-one, 1H-Pyrido[2,3-d]pyrimidin-4-one, 1H,4H-pyrido[2,3-d]pyrimidin-4-one

Pyrido[2,3-d]pyrimidin-4(1H)-one (CAS 24410-19-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5N3O and a molecular weight of 147.134 g/mol. Key properties include a boiling point of 346.2±34.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 163.2±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 24410-19-3
Jingsj CID: J-1523376-8
Molecular Formula: C₇H₅N₃O
Molecular Weight: 147.134 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	346.2±34.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	163.2±25.7 °C
Exact Mass	147.043259
PSA	58.64000
LogP	-0.58
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.730

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 Pyrido[2,3-d]pyrimidin-4(1H)-one?

The CAS number of Pyrido[2,3-d]pyrimidin-4(1H)-one is 24410-19-3.

What are the molecular formula and molecular weight of Pyrido[2,3-d]pyrimidin-4(1H)-one?

Pyrido[2,3-d]pyrimidin-4(1H)-one has molecular formula C7H5N3O and molecular weight 147.134 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. "Pyrido[2,3-d]pyrimidin-4(1H)-one (CAS 24410-19-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523376-8 (accessed 2026-11-09).

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