The approved drug and INN-assigned compound is ipratropium bromide, and is a racemic mixture of two enantiomers. We depict the non-bromide parent compound, and our structure does not specify stereochemistry and represents the mixture. The PubChem and ChEMBL entries linked to above also show the non-isomeric structure. The PubChem entries which represent the two enatiomers found in the racemate are CID 657309
and CID 43232
. Bioactivity data on PubChem is split between the parent compound and the bromide form. Our references specify bioactivity data for the parent compound.
View more information in the IUPHAR Pharmacology Education Project: ipratropium