"248.064450748" . "[H][C@@](O)(C(O)=O)C1=CC=C(O)C=C1" . "ChemAxon" . "2" . "0" . "1" . "ALOGPS" . "methylphenidate" . "11.88" . "4" . "-2.5" . "InChI=1S/C20H24O3/c1-2-15(14-10-6-5-7-11-14)18-19(21)16-12-8-3-4-9-13-17(16)23-20(18)22/h5-7,10-11,15,21H,2-4,8-9,12-13H2,1H3/t15-/m0/s1" . "C10H17NO3" .