1-(dimethylamino)propan-2-yl carbamate-D6; Carbamoyl-beta-methylcholine-D6;(2-Hydroxypropyl)trimethylammonium carbamate-D6;Amidopropyldimethylbetaine-D6;Carbamyl-beta-methylcholine-D6;2-carbamoyloxypropyl-trimethylazanium-D6;2-(carbamoyloxy)-N,N,N-trimethylpropan-1-aminium-D6
