alloxan
Also known as: 2,4,5,6(1H,3H)-Pyrimidinetetrone, Mesoxalylurea, Mesoxalylcarbamide, Pyrimidine-2,4,5,6(1H,3H)-tetrone, Alloxane, 5-Oxobarbituric acid
alloxan (CAS 50-71-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2N2O4 and a molecular weight of 142.070 g/mol. Key properties include a melting point of ~245 °C (dec.), a boiling point of 409.5ºC at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 201.4ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 50-71-5
- Jingsj CID
- J-1359112-2
- Molecular Formula
- C4H2N2O4
- Molecular Weight
- 142.070 g/mol
- Category
- Pharma Intermediates
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ~245 °C (dec.) |
|---|---|
| Boiling Point | 409.5ºC at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 201.4ºC |
| Exact Mass | 142.001450 |
| PSA | 129.26000 |
| LogP | -1.84 |
| Refractive Index | 1.519 |
Frequently Asked Questions
What is the CAS number of alloxan?
The CAS number of alloxan is 50-71-5.
What are the molecular formula and molecular weight of alloxan?
alloxan has molecular formula C4H2N2O4 and molecular weight 142.070 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alloxan (CAS 50-71-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359112-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.