5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one

5,7-二甲基吡啶并[2,3-d]嘧啶-4(3H)-酮

Also known as: 5,7-dimethyl-4-hydroxypyrido[2,3-d]pyrimidine, 5,7-dimethyl-1H-pyrido[2,3-d]pyrimidin-4-one, 5,7-dimethyl-3H-pyrido[2,3-d]pyrimidin-4-one, 5,7-dimethyl-3-hydropyridino[2,3-d]pyrimidin-4-one, pyrido[2,3-d]pyrimidin-4(3H)-one,5,7-dimethyl-

5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one (CAS 1913-72-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9N3O and a molecular weight of 175.18700 g/mol. It is also known as 5,7-dimethyl-4-hydroxypyrido[2,3-d]pyrimidine, 5,7-dimethyl-1H-pyrido[2,3-d]pyrimidin-4-one and 5,7-dimethyl-3H-pyrido[2,3-d]pyrimidin-4-one. Key properties include a melting point of 330ºC, a boiling point of 361.8ºC at 760 mmHg, a density of 1.34g/cm3 and a flash point of 172.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1913-72-0
Jingsj CID
J-27027-8
Molecular Formula
C9H9N3O
Chinese Name
5,7-二甲基吡啶并[2,3-d]嘧啶-4(3H)-酮
Molecular Weight
175.18700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point330ºC
Boiling Point361.8ºC at 760 mmHg
Density1.34g/cm3
Flash Point172.6ºC
Exact Mass175.07500
PSA58.64000
LogP0.93490
Vapor Pressure2.02E-05mmHg at 25°C
Refractive Index1.669

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 5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one?

The CAS number of 5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one is 1913-72-0.

What are the molecular formula and molecular weight of 5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one?

5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one has molecular formula C9H9N3O and molecular weight 175.18700 g/mol.

What are the upstream and downstream products of 5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one?

For 5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one, Upstream Products: 2,4-Pentanedione, 2-Amino-4,6-dimethylnicotinic acid, Methanimidic acid, (Z)-.

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

Last updated:

How to cite: Jingsj. "5,7-dimethylpyrido[2,3-d]pyrimidin-4(3H)-one (CAS 1913-72-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27027-8 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.