4-Chloropyrido[3,4-d]pyrimidine

Also known as: Pyrido[3,4-d]pyrimidine, 4-chloro-, 4-chloropyrido[3,4-d]pyrimidine

4-Chloropyrido[3,4-d]pyrimidine (CAS 51752-67-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4ClN3 and a molecular weight of 165.580 g/mol. Key properties include a boiling point of 316.1±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 174.3±7.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 51752-67-1
Jingsj CID: J-1523336-0
Molecular Formula: C₇H₄ClN₃
Molecular Weight: 165.580 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	316.1±22.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	174.3±7.9 °C
Exact Mass	165.009369
PSA	38.67000
LogP	0.19
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.675

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 4-Chloropyrido[3,4-d]pyrimidine?

The CAS number of 4-Chloropyrido[3,4-d]pyrimidine is 51752-67-1.

What are the molecular formula and molecular weight of 4-Chloropyrido[3,4-d]pyrimidine?

4-Chloropyrido[3,4-d]pyrimidine has molecular formula C7H4ClN3 and molecular weight 165.580 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. "4-Chloropyrido[3,4-d]pyrimidine (CAS 51752-67-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523336-0 (accessed 2026-11-09).

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