Centalun

Centalun
Clinical data
ATC code	none;
Legal status
Legal status	In general: unscheduled;
Identifiers
	IUPAC name 2-methyl-1-phenylbut-3-yne-1,2-diol;
CAS Number	2033-94-5 ;
PubChem CID	16252;
ChemSpider	15421 ;
UNII	3N20VGJ39Y;
CompTox Dashboard (EPA)	DTXSID50942486 ;
Chemical and physical data
Formula	C11H12O2
Molar mass	176.215 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES OC(c1ccccc1)C(C#C)(O)C;
	InChI InChI=1S/C11H12O2/c1-3-11(2,13)10(12)9-7-5-4-6-8-9/h1,4-8,10,12-13H,2H3 ; Key:GQOXDWHRXDPZJK-UHFFFAOYSA-N ;
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Centalun was developed by Boehringer Ingelheim in 1962 and is a psycholeptic drug with hypnotic and sedative effects, via allosteric agonism of the GABA_A receptor. It was previously used for sedation in medical procedures such as surgery, orthopedics and gynecology, although it is no longer in clinical use. Despite its history of clinical use, centalun was never incorporated into the CSA and therefore remains unregulated as a drug of abuse.