gbr-12935 gbr-12935 gbr-12935 is a piperazine derivative which is a potent and selective dopamine reuptake inhibitor. it was originally developed in its 3h radiolabelled form for the purpose of mapping the distribution of dopaminergic neurons in the brain by selective labelling of dopamine transporter proteins. this has led to potential clinical uses in the diagnosis of parkinson's disease, although selective radioligands such as ioflupane (¹²³i) are now available for this application. gbr-12935 is now widely used in animal research into parkinson's disease and the dopamine pathways in the brain. gbr-12935identifiers iupac name 1-(2-(diphenylmethoxy)ethyl)-4-(3-phenylpropyl)piperazine cas number76778-22-8 ypubchem cid3456iuphar/bps4639chemspider3338 nunii9j9974wibachebichebi:64093 nchemblchembl26320 ncomptox dashboard (epa)dtxsid2043743 chemical and physical dataformulac28h34n2omolar mass414.593 g·mol−13d model (jsmol)interactive image smiles c1cn(ccn1cccc2=cc=cc=c2)ccoc(c3=cc=cc=c3)c4=cc=cc=c4 inchi inchi=1s/c28h34n2o/c1-4-11-25(12-5-1)13-10-18-29-19-21-30(22-20-29)23-24-31-28(26-14-6-2-7-15-26)27-16-8-3-9-17-27/h1-9,11-12,14-17,28h,10,13,18-24h2 nkey:raqpozgwanidqt-uhfffaoysa-n n ny (what is this?) (verify)