![Molecular structure of Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate (CAS 40519-95-7)](/images/chem_structures_svg/498/40519-95-7.svg)
Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate
Also known as: 4H-Pyrimido[1,2-a]pyrimidine-3-carboxylic acid, 4-oxo-, ethyl ester, 4-Oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester, Ethyl 4-oxo-4,9a-dihydro-1H-pyrimido[1,2-a]pyrimidine-3-carboxylate, 4H-Pyrimido[1,2-a]pyrimidine-4-oxo-3-carboxylic acid ethyl ester, Ethyl 4-oxo-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate
Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate (CAS 40519-95-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H11N3O3 and a molecular weight of 221.21300 g/mol. Key properties include a boiling point of 435.7ºC at 760 mmHg, a density of 1.4g/cm3 and a flash point of 217.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40519-95-7
- Jingsj CID
- J-1525235-4
- Molecular Formula
- C10H11N3O3
- Molecular Weight
- 221.21300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 435.7ºC at 760 mmHg |
|---|---|
| Density | 1.4g/cm3 |
| Flash Point | 217.3ºC |
| Exact Mass | 221.08000 |
| PSA | 71.00000 |
| Refractive Index | 1.639 |
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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 Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate?
The CAS number of Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate is 40519-95-7.
What are the molecular formula and molecular weight of Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate?
Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate has molecular formula C10H11N3O3 and molecular weight 221.21300 g/mol.
What are the upstream and downstream products of Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate?
For Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate, Upstream Products: 2-(Pyrimidin-2-ylaminomethylene)-malonic acid diethyl ester.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl 4-oxo-1,9a-dihydro-4H-pyrimido[1,2-a]pyrimidine-3-carboxylate (CAS 40519-95-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525235-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.