5-methylpyrimidin-2(1H)-one
Also known as: 2(1H)-Pyrimidinone, 5-methyl-, 2-Hydroxy-5-methylpyrimidine, 5-Methyl-2(1H)-pyrimidinone, 5-Methyl-2-pyrimidone, 5-Methylpyrimidin-2(1H)-one, 5-methylpyrimidin-2-ol, 5-methyl-1H-pyrimidin-2-one
5-methylpyrimidin-2(1H)-one (CAS 41398-85-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O and a molecular weight of 110.11400 g/mol. Key properties include a melting point of 211ºC, a boiling point of 309.1ºC at 760mmHg, a density of 1.22g/cm3 and a flash point of 140.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 41398-85-0
- Jingsj CID
- J-1444001-8
- Molecular Formula
- C5H6N2O
- Molecular Weight
- 110.11400 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 211ºC |
|---|---|
| Boiling Point | 309.1ºC at 760mmHg |
| Density | 1.22g/cm3 |
| Flash Point | 140.8ºC |
| Exact Mass | 110.04800 |
| PSA | 46.01000 |
| LogP | 0.49060 |
| Refractive Index | 1.576 |
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 5-methylpyrimidin-2(1H)-one?
The CAS number of 5-methylpyrimidin-2(1H)-one is 41398-85-0.
What are the molecular formula and molecular weight of 5-methylpyrimidin-2(1H)-one?
5-methylpyrimidin-2(1H)-one has molecular formula C5H6N2O and molecular weight 110.11400 g/mol.
What are the upstream and downstream products of 5-methylpyrimidin-2(1H)-one?
For 5-methylpyrimidin-2(1H)-one, Upstream Products: Urea, Propionaldehyde diethyl acetal, N,N-Dimethylformamide; Downstream Products: 5-methylpyrimidin-2(1H)-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-methylpyrimidin-2(1H)-one (CAS 41398-85-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1444001-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.