(S)-7-Benzyloxy Warfarin Quinidine Salt is an intermediate in the synthesis of (S)-7-Hydroxy Warfarin (H996126), is the S-enantiomer of the 7-hydroxyl metabolite of Warfarin (W498500). (S)-7-Hydroxy Warfarin was present at levels 7-folds higher in chimeric mice with humanized liver (than that in controlled mice) following (S)-Warfarin metabolism.