InChI=1S/C16H16ClNO3.CH4O3S/c17-15-11-5-6-18-8-13(9-1-3-10(19)4-2-9)12(11)7-14(20)16(15)21;1-5(2,3)4/h1-4,7,13,18-21H,5-6,8H2;1H3,(H,2,3,4)