1-Methyluracil
Also known as: 1-Methylpyrimidine-2,4(1H,3H)-dione, 1-Methyl-2,4(1H,3H)-pyrimidinedione, 1-Methyl-1H-pyrimidine-2,4-dione, 2,4(1H,3H)-Pyrimidinedione, 1-methyl-, Methyluracil, NSC 44432
1-Methyluracil (CAS 615-77-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O2 and a molecular weight of 126.113 g/mol. Key properties include a melting point of 236-238ºC(lit.), a boiling point of 260.1ºC at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 111.1ºC. It is classified under GHS with signal word Warning and hazard statements H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 615-77-0
- Jingsj CID
- J-13006-3
- Molecular Formula
- C5H6N2O2
- Molecular Weight
- 126.113 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 236-238ºC(lit.) |
|---|---|
| Boiling Point | 260.1ºC at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 111.1ºC |
| Exact Mass | 126.042931 |
| PSA | 54.86000 |
| LogP | -1.20 |
| Refractive Index | 1.512 |
GHS Safety & Compliance
- H351 — Suspected of causing cancer
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 1-Methyluracil?
The CAS number of 1-Methyluracil is 615-77-0.
What are the molecular formula and molecular weight of 1-Methyluracil?
1-Methyluracil has molecular formula C5H6N2O2 and molecular weight 126.113 g/mol.
Is 1-Methyluracil hazardous?
1-Methyluracil has GHS signal word Warning and hazard statements H351 — Suspected of causing cancer.
What are the upstream and downstream products of 1-Methyluracil?
For 1-Methyluracil, Upstream Products: Uracil, iodomethane, Dimethyl sulfate; Downstream Products: 1-Methyluracil, 5-hydroxy-1-methylimidazolidine-2,4-dione, 1-Methyl-5-nitrouracil.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Methyluracil (CAS 615-77-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13006-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.