Alphenal

Alphenal, also known as 5-allyl-5-phenylbarbituric acid, is a barbiturate derivative developed in the 1920s.^[1] 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.^[2][3][4][5]

Alphenal

Clinical data
Trade names	Alphenal, Efrodal, Prophenal, Sanudorm
Other names	5-Phenyl-5-allylbarbituric acid
Routes of administration	By mouth
Drug class	Barbiturate
ATC code	none
Legal status
Legal status	CA: Schedule IV US: Schedule III
Identifiers
IUPAC name 5-phenyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione
CAS Number	115-43-5 Y
PubChem CID	8274
ChemSpider	7975 Y
UNII	7T7L08Q9JI
CompTox Dashboard (EPA)	DTXSID60150919
ECHA InfoCard	100.003.718
Chemical and physical data
Formula	C13H12N2O3
Molar mass	244.250 g·mol−1
3D model (JSmol)	Interactive image
SMILES O=C1NC(=O)NC(=O)C1(c2ccccc2)C\C=C
InChI InChI=1S/C13H12N2O3/c1-2-8-13(9-6-4-3-5-7-9)10(16)14-12(18)15-11(13)17/h2-7H,1,8H2,(H2,14,15,16,17,18) Y Key:WOIGZSBYKGQJGL-UHFFFAOYSA-N Y
(verify)

LD₅₀: Mouse (Oral): 280 mg/kg