Exploring 14375. To explore a different substance…

{4-[(2-Methoxypropanoyl)(phenyl)amino]-1-[2-(thiophen-2-yl)ethyl]piperidin-4-yl}methyl 2-methoxypropanoate
 14375  C26H36N2O5S  488.639
 Fentanyl
 InChI=1S/C26H36N2O5S/c1-20(31-3)24(29)28(22-9-6-5-7-10-22)26(19-33-25(30)21(2)32-4)13-16-27(17-14-26)15-12-23-11-8-18-34-23/h5-11,18,20-21H,12-17,19H2,1-4H3
 CDHJITUHOCSPJU-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 COC(C(=O)N(C1(CCN(CC1)CCc1cccs1)COC(=O)C(OC)C)c1ccccc1)C