Chemical Name: (2R,4RS)-2-[(1S,2R)-1-carboxy-2-hydroxypropyl]-4-[[2-[(iminomethyl)amino]ethyl]sulfanyl]-3,4-dihydro-2H-pyrrole-5-carboxylic acid (as per EP)
Synonym: (R)-Cetirizine
Smile: [H][C@]1(N=C(C(O)=O)[C@@](SCCNC=N)([H])C1)[C@@](C(O)=O)([H])[C@]([H])(O)C