Cyclopentobarbital

Cyclopentobarbital
Clinical data

ATC code	None
Legal status
Legal status	CA: Schedule IV
Identifiers
IUPAC name 5-(1-cyclopent-2-enyl)-5-prop-2-enyl-1,3- diazinane-2,4,6-trione
Synonyms	Allylpental, Cyclopental, 5-Allyl-5-Δ²-Cyclopentenyl Barbituric Acid
CAS Number	76-68-6
PubChem CID	6454
ChemSpider	6212^Y
ECHA InfoCard	100.000.891
Chemical and physical data
Formula	C₁₂H₁₄N₂O₃
Molar mass	234.251 g/mol
3D model (Jmol)	Interactive image
SMILES O=C1NC(=O)NC(=O)C1(C2/C=C\CC2)C\C=C
InChI InChI=1S/C12H14N2O3/c1-2-7-12(8-5-3-4-6-8)9(15)13-11(17)14-10(12)16/h2-3,5,8H,1,4,6-7H2,(H2,13,14,15,16,17)^Y Key:XOVJAYNMQDTIJD-UHFFFAOYSA-N^Y

Cyclopentobarbital sodium (Cyclopal, Dormisan) is a barbiturate derivative invented in the 1940s. It has sedative and anticonvulsant properties, and was used primarily as an anaesthetic in veterinary medicine. Cyclopal is considered similar in effects to phenobarbital but lasts almost three times as long, and is considered a long-acting barbiturate with a fairly slow onset of action.

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