5341-49-1 ([[hydrochloride|HCl]])
26594-41-2 ((''R'')-form)
561-10-4 ((''S'')-form)
7487-81-2 ((''S'')-form (HCl))"},"ATC_prefix":{"wt":"None"},"ATC_suffix":{"wt":""},"PubChem":{"wt":"10072"},"ChemSpiderID":{"wt":"9675"},"C":{"wt":"21"},"H":{"wt":"27"},"N":{"wt":"1"},"O":{"wt":"1"},"smiles":{"wt":"O=C(CC)C(C1=CC=CC=C1)(C(C)CN(C)C)C2=CC=CC=C2"},"synonyms":{"wt":"WIN-1783, BW 47-442"},"StdInChI":{"wt":"1S/C21H27NO/c1-5-20(23)21(17(2)16-22(3)4,18-12-8-6-9-13-18)19-14-10-7-11-15-19/h6-15,17H,5,16H2,1-4H3"},"StdInChIKey":{"wt":"IFKPLJWIEQBPGG-UHFFFAOYSA-N"},"bioavailability":{"wt":""},"protein_bound":{"wt":""},"metabolism":{"wt":""},"elimination_half-life":{"wt":""},"excretion":{"wt":""},"pregnancy_category":{"wt":""},"legal_DE":{"wt":"Anlage II"},"legal_status":{"wt":""},"legal_AU":{"wt":"S9"},"legal_BR":{"wt":"A1"},"legal_BR_comment":{"wt":"{{Cite web |author=Anvisa |author-link=Brazilian Health Regulatory Agency |date=2023-03-31 |title=RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial |trans-title=Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control|url=https://www.in.gov.br/en/web/dou/-/resolucao-rdc-n-784-de-31-de-marco-de-2023-474904992 |url-status=live |archive-url=https://web.archive.org/web/20230803143925/https://www.in.gov.br/en/web/dou/-/resolucao-rdc-n-784-de-31-de-marco-de-2023-474904992 |archive-date=2023-08-03 |access-date=2023-08-16 |publisher=[[Diário Oficial da União]] |language=pt-BR |publication-date=2023-04-04}}"},"legal_CA":{"wt":"Schedule I"},"legal_US":{"wt":"Schedule II"},"legal_UN":{"wt":"P I"},"routes_of_administration":{"wt":""},"UNII_Ref":{"wt":"{{fdacite|correct|FDA}}"},"UNII":{"wt":"12L95QD6KV"},"KEGG_Ref":{"wt":"{{keggcite|correct|kegg}}"},"KEGG":{"wt":"D12676"}},"i":0}}]}" id="mwBA">Pharmaceutical compound
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Other names | WIN-1783, BW 47-442 |
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Chemical and physical data | |
Formula | C21H27NO |
Molar mass | 309.453 g·mol−1 |
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Isomethadone (INN, BAN; trade name Liden; also known as isoamidone) is a synthetic opioid analgesic and antitussive related to methadone that was used formerly as a pharmaceutical drug but is now no longer marketed. [2] [3] [4] [5] Isomethadone was used as both an analgesic and antitussive. It binds to and activates both the μ- and δ-opioid receptors, with the (S)-isomer being the more potent of the two enantiomers. [6] Isomethadone is a Schedule II controlled substance in the United States, with an ACSCN of 9226 and a 2014 aggregate manufacturing quota of 5 g. The salts in use are the hydrobromide (HBr, free base conversion ratio 0.793), hydrochloride (HCl, 0.894), and HCl monohydrate (0.850). [7] Isomethadone is also regulated internationally as a Schedule I controlled substance under the United Nations Single Convention on Narcotic Drugs of 1961. [8]