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6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one

Also known as: 6-CHLORO-3H-PYRIDO[3,4-D]PYRIMIDIN-4-ONE, 6-Chloro-1H-pyrido[3,4-d]pyrimidin-4-one, 6-Chloropyrido[3,4-d]pyrimidin-4(1H)-one, 6-Chloropyrido[3,4-d]pyrimidin-4-ol, 6-Chloropyrido[3,4-d]pyrimidin-4(3H)

6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one (CAS 171178-47-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4ClN3O and a molecular weight of 181.579 g/mol. Key properties include a boiling point of 463.8±30.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 234.3±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
171178-47-5
Jingsj CID
J-1365277-2
Molecular Formula
C7H4ClN3O
Molecular Weight
181.579 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point463.8±30.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point234.3±24.6 °C
Exact Mass181.004288
PSA58.64000
LogP-0.05
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.749
Storage Conditions2-8°C

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 6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one?

The CAS number of 6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one is 171178-47-5.

What are the molecular formula and molecular weight of 6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one?

6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one has molecular formula C7H4ClN3O and molecular weight 181.579 g/mol.

What are the upstream and downstream products of 6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one?

For 6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one, Upstream Products: 5-Amino-2-chloropyridine-4-carboxylic acid, Methanimidic acid, (Z)-, tert-butyl N-(6-chloropyridin-3-yl)carbamate.

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

Last updated:

How to cite: Jingsj. "6-Chloropyrido[3,4-d]pyrimidin-4(3H)-one (CAS 171178-47-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1365277-2 (accessed 2026-11-09).

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