o-2172 o-2172 o-2172 is a drug developed by organix inc, which acts as a stimulant and potent dopamine reuptake inhibitor. it is an analogue of methylphenidate where the phenyl ring has had a 3,4-dichloro substitution added, and the piperidine ring has been replaced by cyclopentane. it is around 1/3 the potency of methylphenidate, demonstrating that even with the important binding group of the nitrogen lone pair removed entirely, selective dat binding and reuptake inhibition is still possible. o-2172identifiers iupac name methyl 2-cyclopentyl-2-(3,4-dichlorophenyl)acetate cas number521062-92-0 ypubchem cid11778793chemspider9953475 nuniispk6rb6jmkchemical and physical dataformulac14h16cl2o2molar mass287.18 g·mol−13d model (jsmol)interactive image smiles clc1ccc(cc1cl)c(c(=o)oc)c2cccc2 inchi inchi=1s/c14h16cl2o2/c1-18-14(17)13(9-4-2-3-5-9)10-6-7-11(15)12(16)8-10/h6-9,13h,2-5h2,1h3 nkey:nehpfnbrzyfwfn-uhfffaoysa-n n ny (what is this?) (verify)