tandamine tandamine tandamine is a selective norepinephrine reuptake inhibitor with a tricyclic structure. it was developed in the 1970s as an antidepressant but was never commercialized. tandamine is analogous to pirandamine, which, instead, acts as a selective serotonin reuptake inhibitor (ssri). tandamineclinical dataatc codenoneidentifiers iupac name 2-(9-ethyl-1-methyl-3,4-dihydrothiopyranoindol-1-yl)-n,n-dimethylethanamine cas number42408-80-0 yhcl: 58167-78-5 ypubchem cid39187chemspider35851unii6l5fh5a43ehcl: 7516k9ugug ychemical and physical dataformulac18h26n2smolar mass302.48 g·mol−13d model (jsmol)interactive image smiles ccn3c1ccccc1c2ccsc(c)(ccn(c)c)c23 inchi inchi=1s/c18h26n2s/c1-5-20-16-9-7-6-8-14(16)15-10-13-21-18(2,17(15)20)11-12-19(3)4/h6-9h,5,10-13h2,1-4h3key:brpoadlgofpkkj-uhfffaoysa-n (verify) the exact identical same structure, although this time changing the thioether to a methylene group revealed a strongest compound of the series called ay 24614.