InChI=1S/C17H19NO3.H2O4S/c1-18-7-6-17-10-3-5-13(20)16(17)21-15-12(19)4-2-9(14(15)17)8-11(10)18;1-5(2,3)4/h2,4,10-11,16,19H,3,5-8H2,1H3;(H2,1,2,3,4)/t10-,11+,16-,17-;/m0./s1