Uracil
Also known as: Pyrimidine-2,4(1H,3H)-dione, 2,4-Dihydroxypyrimidine, 2,4-Pyrimidinediol, Uracyl, Hybar X, Pirod, Pyrod, Lamivudine Impurity F, Fluorouracil Impurity C, 2,4-Dioxotetrahydropyrimidine, Dihydro-pyrimidine-2,4-dione
Uracil (CAS 66-22-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O2 and a molecular weight of 112.087 g/mol. Key properties include a melting point of 330°C, a boiling point of 440.5±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 220.2±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 66-22-8
- Jingsj CID
- J-867431-9
- Molecular Formula
- C4H4N2O2
- Molecular Weight
- 112.087 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 330°C |
|---|---|
| Boiling Point | 440.5±37.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 220.2±26.5 °C |
| Exact Mass | 112.027275 |
| PSA | 65.72000 |
| LogP | -2.55 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.640 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Additional Property | SOLUBLE IN HOT WATER |
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Pałasz A, et al. In search of uracil derivatives as bioactive agents. Uracils and fused uracils: Synthesis, biological activity and applications. Eur J Med Chem. 2015 Jun 5;97:582-611. |
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 Uracil?
The CAS number of Uracil is 66-22-8.
What are the molecular formula and molecular weight of Uracil?
Uracil has molecular formula C4H4N2O2 and molecular weight 112.087 g/mol.
What are the upstream and downstream products of Uracil?
For Uracil, Upstream Products: 2-Thiouracil, Methyl 3,3-dimethoxypropionate, 2'-deoxyuridine; Downstream Products: 2,4-Dimethoxypyrimidine, 2,4-Dichloropyrimidine, Dichloroacetonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Uracil (CAS 66-22-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-867431-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.