. . . "'''351a'''" . "4-Nitromethylphenidate" . . "1354631-33-6" . . "''p''-F" . . . . . "4-Fluoromethylphenidate" . "70876096" . . . . "4F-MPH" . . . "TN2LV2C0X9" . . "4-Fluoromethylphenidate" . . .