Violuric acid
Also known as: 5-Isonitrosobarbituric acid, 5-Hydroxyiminobarbituric acid, Alloxan-5-oxime, 2,4,5,6(1H,3H)-Pyrimidinetetrone 5-oxime, 5-(Hydroxyimino)pyrimidine-2,4,6(1H,3H,5H)-trione, EINECS 201-741-4, MFCD00006032
Violuric acid (CAS 87-39-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H3N3O4 and a molecular weight of 157.08400 g/mol. Key properties include a melting point of 240-250 °C (dec.), a boiling point of 494.1ºCat 760 mmHg, a density of 2.19 g/cm3 and a flash point of 252.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 87-39-8
- Jingsj CID
- J-19815-2
- Molecular Formula
- C4H3N3O4
- Molecular Weight
- 157.08400 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 240-250 °C (dec.) |
|---|---|
| Boiling Point | 494.1ºCat 760 mmHg |
| Density | 2.19 g/cm3 |
| Flash Point | 252.6ºC |
| Exact Mass | 157.01200 |
| PSA | 107.86000 |
| Refractive Index | 1.813 |
Activity & Biological Data
| Additional Information | [1]. Zhenyu Shi, et al. Enhanced Transformation of Emerging Contaminants by Permanganate in the Presence of Redox Mediators. Environ Sci Technol. 2020 Feb 4;54(3):1909-1919. [2]. Isabel Pardo, et al. Colorimetric High-Throughput Screening Assays for the Directed Evolution of Fungal Laccases. Methods Mol Biol. 2018;1685:247-254. |
|---|
Customs & Trade Information
| HS Code | 2933540000 |
|---|---|
| Summary | 2933540000 other derivatives of malonylurea (barbituric acid); salts thereof。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 Violuric acid?
The CAS number of Violuric acid is 87-39-8.
What are the molecular formula and molecular weight of Violuric acid?
Violuric acid has molecular formula C4H3N3O4 and molecular weight 157.08400 g/mol.
What are the upstream and downstream products of Violuric acid?
For Violuric acid, Upstream Products: Uric Acid, Barbituric acid, Alloxantin; Downstream Products: 5-Nitrobarbituric acid, 5,5-Dibromobarbituric acid, Riboflavin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Violuric acid (CAS 87-39-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19815-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.