Dimethylthiambutene

Dimethylthiambutene
Clinical data

ATC code	none
Legal status
Legal status	CA: Schedule I DE: Anlage I (Controlled) US: Schedule I
Identifiers
IUPAC name (RS)-N,N-dimethyl-4,4-dithiophen-2-yl-but-3-en-2-amine
CAS Number	524-84-5^Y
PubChem CID	10668
DrugBank	DB01444^Y
ChemSpider	10218^Y
UNII	915D88LM9O
ChEBI	CHEBI:59781^Y
ChEMBL	CHEMBL2106265
Chemical and physical data
Formula	C₁₄H₁₇NS₂
Molar mass	263.424 g/mol
3D model (Jmol)	Interactive image
Melting point	169 to 170 °C (336 to 338 °F)
SMILES CC(C=C(C1=CC=CS1)C2=CC=CS2)N(C)C
InChI InChI=1S/C14H17NS2/c1-11(15(2)3)10-12(13-6-4-8-16-13)14-7-5-9-17-14/h4-11H,1-3H3^Y Key:CANBGVXYBPOLRR-UHFFFAOYSA-N^Y

Dimethylthiambutene (N,N-Dimethyl-1-methyl-3,3-di-2-thienylallylamine, DMTB, trade names Ohton, Aminobutene, Dimethibutin, Kobaton, Takaton, Dimethibutin) is an opioid analgesic drug, most often used in veterinary medicine in Japan and to a lesser extent in other countries in the region and around the world. It is the most prominent and widely used of the thiambutenes, a series of open-chain opioids structurally related to methadone which are also called the thienyl derivative opioids which also includes diethylthiambutene and ethylmethylthiambutene, as well as the non-opioid cough suppressant tipepidine.

Dimethylthiambutene was developed in the United Kingdom in the late 1940s and introduced to the market by Burroughs-Wellcome in 1951. Dimethylthiambutene is now under international control under the UN Single Convention on Narcotic Drugs 1961, the laws governing habit-forming substances in virtually all countries and Schedule I of the US Controlled Substances Act of 1970 due to high abuse potential and never being introduced clinically in the United States; other countries regulate it much as morphine or diamorphine. Its DEA ACSCN is 9619 and it had a zero manufacturing quota in 2013.

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