Tramadol
https://fr.wikipedia.org/wiki/Tramadol
C16H25NO2 [Isomères]
CN(C)C[C@H]1CCCC[C@@]1(C2=CC(=CC=C2)OC)O InChI=1S/C16H25NO2/c1-17(2)12-14-7-4-5-10-16(14,18)13-8-6-9-15(11-13)19-3/h6,8-9,11,14,18H,4-5,7,10,12H2,1-3H3/t14-,16+/m1/s1 Std. InChIKey : TVYLLZQTGLZFBW-ZBFHGGJFSA-N
Analysis of PMA5_37_x samples (wrongly labbeled PMA3_37_x) indicate the absence of tramadol when extraction the protonated exact mass at 5 and 15 ppm tol.
I also think that some tramadol papers described