5-Cyanouracil
5-氰基尿嘧啶
Also known as: 2,4-Dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile, 2,4-Dihydroxy-5-pyrimidinecarbonitrile, 2,4-Dioxo-1H-pyrimidine-5-carbonitrile, 2,4-Dihydroxypyrimidine-5-carbonitrile, 5-Cyano-2,4-dihydroxypyrimidine, 5-Pyrimidinecarbonitrile, 1,2,3,4-tetrahydro-2,4-dioxo-, Uracil-5-carbonitrile
5-Cyanouracil (CAS 4425-56-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3N3O2 and a molecular weight of 137.096 g/mol. It is also known as 2,4-Dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile, 2,4-Dihydroxy-5-pyrimidinecarbonitrile and 2,4-Dioxo-1H-pyrimidine-5-carbonitrile. Key properties include a melting point of 303 °C(dec.), a boiling point of 524.8±60.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 271.2±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4425-56-3
- Jingsj CID
- J-17016-5
- Molecular Formula
- C5H3N3O2
- Chinese Name
- 5-氰基尿嘧啶
- Molecular Weight
- 137.096 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 303 °C(dec.) |
|---|---|
| Boiling Point | 524.8±60.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 271.2±32.9 °C |
Frequently Asked Questions
What is the CAS number of 5-Cyanouracil?
The CAS number of 5-Cyanouracil is 4425-56-3.
What are the molecular formula and molecular weight of 5-Cyanouracil?
5-Cyanouracil has molecular formula C5H3N3O2 and molecular weight 137.096 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Cyanouracil (CAS 4425-56-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17016-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.