[20-13C]-Arachidonic acid
                          [20-13C]-Arachidonic acid
                          [2H6]-Brivanib
                          [2H6]-Ipatasertib
                          [13C6]-L-Ascorbic acid
                          [2H6]-25-O-Desacetylrifabutin
                          [2H5]-4-hydroxy-TEMPO
                          [2H3]-Acitretin
                          [13C8]-Dehydronifedipine
                          [2H5]-Posaconazole
                          [13C,2H3]-5-Hydroxyomeprazole
                          [2H3, 15N2]-3-Chloro-2-hydrazinyl-pyridine
                          [13C,2H3]-Alosetron