![Molecular structure of 2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride (CAS 126728-21-0)](/images/chem_structures_svg/167/126728-21-0.svg)
2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride
Also known as: 2-chloro-1H-pyrido[2,3-d]pyrimidin-4-one hydrochloride, 2-chloro-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidine hydrochloride, 2-chloropyrido[2,3-d]pyrimidin-4(3H)-one hydrochloride, 2-chloropyrido[2,3]pyrimidin-4(1H)-one hydrochloride
2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride (CAS 126728-21-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5Cl2N3O and a molecular weight of 218.04000 g/mol. Key properties include a boiling point of 325.8ºC at 760 mmHg, a density of 1.598g/cm3 and a flash point of 150.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 126728-21-0
- Jingsj CID
- J-1524370-6
- Molecular Formula
- C7H5Cl2N3O
- Molecular Weight
- 218.04000 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 325.8ºC at 760 mmHg |
|---|---|
| Density | 1.598g/cm3 |
| Flash Point | 150.8ºC |
| Exact Mass | 216.98100 |
| PSA | 58.64000 |
| LogP | 1.77350 |
| Vapor Pressure | 0.000118mmHg at 25°C |
| Refractive Index | 1.725 |
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 2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride?
The CAS number of 2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride is 126728-21-0.
What are the molecular formula and molecular weight of 2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride?
2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride has molecular formula C7H5Cl2N3O and molecular weight 218.04000 g/mol.
What are the upstream and downstream products of 2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride?
For 2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride, Upstream Products: 2,4-Dichloropyrido[2,3-d]pyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Chloropyrido[2,3-d]pyrimidin-4(1H)-one hydrochloride (CAS 126728-21-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524370-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.