Cyclobarbital

Structural formula
General
Non-proprietary name	Cyclobarbital
other names	5- (1-cyclohexen-1-yl) -5-ethyl- (1 H , 3 H , 5 H ) -pyrimidine-2,4,6-trione; Phanodorm;
Molecular formula	C 12 H 16 N 2 O 3
External identifiers / databases
EC number	200-138-3
ECHA InfoCard	100,000,127
PubChem	5838
Wikidata	Q416966
Drug information
ATC code	N05 CA10
Drug class	Sedative , narcotic , anti-epileptic
Mechanism of action	GABA A receptor agonist
properties
Molar mass	236.27 g mol −1
pK s value	7.6
safety instructions
	Please note the exemption from the labeling requirement for drugs, medical devices, cosmetics, food and animal feed
GHS labeling of hazardous substances Caution
H and P phrases	H: 302
	P: ?
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cyclobarbital is a barbiturate ; H. a derivative of barbituric acid . Barbiturates are used as sedatives , narcotics, and anti-epileptics . The active ingredient was patented by Bayer in 1924 as a sleeping aid . The calcium salt is usually used.

Cyclobarbital caused a stir in the Barschel affair because it is said to have been used there in a lethal dose.

Legal status

Cyclobarbital is a marketable narcotic drug in the Federal Republic of Germany due to its listing in Appendix 2 BtMG , but not a prescription drug. Handling without permission is generally a criminal offense. Further information can be found in the main article Narcotics Law in Germany .

Internationally, cyclobarbital falls under the Convention on Psychotropic Substances .

Individual evidence

↑ ^a ^b ^c Entry on cyclobarbital. In: Römpp Online . Georg Thieme Verlag, accessed on June 29, 2019.
↑ Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of cyclobarbital in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), which was retrieved on December 28, 2019, is reproduced from a self-classification by the distributor .
↑ Netzeitung of August 12, 2007 ( Memento of May 21, 2007 in the Internet Archive )

[römpp-1] Entry on cyclobarbital. In: Römpp Online . Georg Thieme Verlag, accessed on June 29, 2019.

[2] Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of cyclobarbital in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), which was retrieved on December 28, 2019, is reproduced from a self-classification by the distributor .

[3] Netzeitung of August 12, 2007 ( Memento of May 21, 2007 in the Internet Archive )