InChI string, with or without the leading InChI= prefix.
InChI=
"1S/C2H2O4.2K/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2" Copy
"1S/C2H2O4.2K/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2"
InChI string, with or without the leading
InChI=prefix.