N-(2-Cyclopropyl-1,3-bis(2-fluorophenyl)propan-2-yl)acetamide-d5i s a byproduct in the synthesis of Prasugrel Thiolactone-d5 (Mixture of Diastereomers) which is aSugidachi, A., et al.: Br. J. Pharmacol., 129, 1439 (2000); Takahashi, S., et al.: J. Pharm. Sci., 97, 5434 (2008); Williams, E., et al.: Drug Metab. Dispos., 36, 1227 (2008); Hagihara, K., et al.: Xenobiotica, 39, 218 (2009); labelled inactive metabolite of Prasugrel. Molecular Formula: C20H16D5F2NO Solubility: Dichloromethane, Ethyl Acetate, Methanol Molecular Weight: 334.41