Barbituric acid
Also known as: 2,4,6(1H,3H,5H)-Pyrimidinetrione, Malonylurea, 2,4,6-Trihydroxypyrimidine, 2,4,6-Pyrimidinetrione, 2,4,6-Trioxohexahydropyrimidine, N,N'-Malonylurea, Pyrimidinetriol, 6-Hydroxyuracil, Hydrouracil, 6-hydroxy-
Barbituric acid (CAS 67-52-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O3 and a molecular weight of 128.086 g/mol. Key properties include a melting point of 248-252 °C (dec.)(lit.), a boiling point of 372.7±25.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 179.2±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 67-52-7
- Jingsj CID
- J-1503511-7
- Molecular Formula
- C4H4N2O3
- Molecular Weight
- 128.086 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 248-252 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 372.7±25.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 179.2±23.2 °C |
| Exact Mass | 128.022186 |
| PSA | 75.27000 |
| LogP | -1.72 |
| Vapor Pressure | 0.0±1.9 mmHg at 25°C |
| Refractive Index | 1.709 |
| Additional Property | 142 g/L (20 ºC) |
Customs & Trade Information
| HS Code | 2933520000 |
|---|---|
| Summary | HS: 2933520000. pyrimidine-2,4,6(1h,3h,5h)-trione. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tarrif:6.5%. general tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Barbituric acid?
The CAS number of Barbituric acid is 67-52-7.
What are the molecular formula and molecular weight of Barbituric acid?
Barbituric acid has molecular formula C4H4N2O3 and molecular weight 128.086 g/mol.
What are the upstream and downstream products of Barbituric acid?
For Barbituric acid, Upstream Products: Urea, Diethyl malonate, 2-Thiobarbituric acid; Downstream Products: 2,4,6-Trichloropyrimidine, 5-Nitrobarbituric acid, 2,4,6-Trichloropyrimidine-5-carbaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Barbituric acid (CAS 67-52-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503511-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.