| Clinical data | |
|---|---|
| Trade names | Alphenal, Efrodal, Prophenal, Sanudorm |
| Other names | 5-Phenyl-5-allylbarbituric acid |
| Routes of administration | By mouth |
| Drug class | Barbiturate |
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| Legal status | |
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| Identifiers | |
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| CAS Number | |
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| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.003.718 |
| Chemical and physical data | |
| Formula | C13H12N2O3 |
| Molar mass | 244.250 g·mol−1 |
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Alphenal, also known as 5-allyl-5-phenylbarbituric acid, is a barbiturate derivative developed in the 1920s. It has primarily anticonvulsant properties and was used occasionally for the treatment of epilepsy or convulsions, although not as commonly as better known barbiturates such as phenobarbital.
LD50: Mouse (Oral): 280 mg/kg