5-Azauracil
Also known as: 1,3,5-Triazine-2,4(1H,3H)-dione, 1,3,5-Triazine-2,4(3H,5H)-dione, Allantoxaidin, Allantoxaidine, Oxaidin, s-Triazine-2,4(1H,3H)-dione, NSC 56901
5-Azauracil (CAS 71-33-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3N3O2 and a molecular weight of 113.07500 g/mol. Key properties include a melting point of 281-282ºC, a boiling point of 573.9ºC at 760 mmHg, a density of 1.86 g/cm3 and a flash point of 300.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 71-33-0
- Jingsj CID
- J-1525909-3
- Molecular Formula
- C3H3N3O2
- Molecular Weight
- 113.07500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 281-282ºC |
|---|---|
| Boiling Point | 573.9ºC at 760 mmHg |
| Density | 1.86 g/cm3 |
| Flash Point | 300.9ºC |
| Exact Mass | 113.02300 |
| PSA | 78.61000 |
| Refractive Index | 1.748 |
| Storage Conditions | -20°C Freezer |
Customs & Trade Information
| HS Code | 2933699090 |
|---|---|
| Summary | 2933699090 other compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 5-Azauracil?
The CAS number of 5-Azauracil is 71-33-0.
What are the molecular formula and molecular weight of 5-Azauracil?
5-Azauracil has molecular formula C3H3N3O2 and molecular weight 113.07500 g/mol.
What are the upstream and downstream products of 5-Azauracil?
For 5-Azauracil, Upstream Products: N-Chlorocarbonyl isocyanate, Triethyl orthoformate, Urea; Downstream Products: 1,3,5-triazinane-2,4-dione, 2,4-Dichloro-1,3,5-triazine, Biuret.
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-Azauracil (CAS 71-33-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525909-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.