pd-102,807 pd-102,807 pd-102,807 is a drug which acts as a selective antagonist for the muscarinic acetylcholine receptor m4. it is used in scientific research for studying the effects of the different muscarinic receptor subtypes in the body and brain. pd-102,807identifiers iupac name ethyl 3,6a,11,14-tetrahydro-9-methoxy-2-methyl-(12h)-isoquinopyrrolobenzoxazine-1-carboxylate cas number23062-91-1 npubchem cid4995951chemspider4175916 yuniia7u96364hkchemblchembl59898 ycomptox dashboard (epa)dtxsid20407355 chemical and physical dataformulac23h24n2o4molar mass392.455 g·mol−13d model (jsmol)interactive image smiles ccoc(=o)c1c(c)c(c1c3c5)ccc3oc2n5ccc4c2ccc(oc)c4 inchi inchi=1s/c23h24n2o4/c1-4-28-23(26)20-13(2)24-18-7-8-19-17(21(18)20)12-25-10-9-14-11-15(27-3)5-6-16(14)22(25)29-19/h5-8,11,22,24h,4,9-10,12h2,1-3h3 ykey:vddujinyxkgzlv-uhfffaoysa-n y ny (what is this?) (verify)