Levopropoxyphene

Levopropoxyphene
Names
	Preferred IUPAC name (2R,3S)-4-(Dimethylamino)-3-methyl-1,2-diphenylbutan-2-yl propanoate
Identifiers
CAS Number	2338-37-6 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEMBL	ChEMBL1213351 ;
ChemSpider	21234163 ;
PubChem CID	200742;
UNII	U75VZ9PK1J ;
CompTox Dashboard (EPA)	DTXSID8023212 ;
	InChI InChI=1S/C22H29NO2/c1-5-21(24)25-22(18(2)17-23(3)4,20-14-10-7-11-15-20)16-19-12-8-6-9-13-19/h6-15,18H,5,16-17H2,1-4H3 Key: XLMALTXPSGQGBX-UHFFFAOYSA-N ; InChI=1/C22H29NO2/c1-5-21(24)25-22(18(2)17-23(3)4,20-14-10-7-11-15-20)16-19-12-8-6-9-13-19/h6-15,18H,5,16-17H2,1-4H3/t18-,22-/m1/s1 Key: XLMALTXPSGQGBX-XMSQKQJNBJ;
	SMILES CCC(=O)OC(Cc1ccccc1)(c2ccccc2)C(C)CN(C)C; O=C(O[C@](c1ccccc1)(Cc2ccccc2)[C@@H](C)CN(C)C)CC;
Properties
Chemical formula	C22H29NO2
Molar mass	339.471
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Levopropoxyphene is an antitussive. It is an optical isomer of dextropropoxyphene. The racemic mixture is called propoxyphene. Only the dextro-isomer (dextropropoxyphene) has an analgesic effect; the levo-isomer appears to exert only an antitussive effect. It was formerly marketed in the U.S. by Eli Lilly under the tradename Novrad (a reversal of Darvon) as an antitussive. Unlike many antitussives, it binds poorly to the sigma-1 receptor.