InChI=1S/C4H6O2.C3H6O3S.C2H4O.Na/c1-3-6-4(2)5;1-2-3-7(4,5)6;1-2-3;/h3H,1H2,2H3;2H,1,3H2,(H,4,5,6);2-3H,1H2;/q;;;+1/p-1