label: N-1-((3,4-dimethoxy-6-nitrophenyl)-2,3-epoxypropyloxycarbonyl)-4-(N,N-dimethylamino)pyridinium 3-oxo-2,5-diphenyl-2,3-dihydrothiophen-1,1-dioxide-4-hydroxide
label_lc: n-1-((3,4-dimethoxy-6-nitrophenyl)-2,3-epoxypropyloxycarbonyl)-4-(n,n-dimethylamino)pyridinium 3-oxo-2,5-diphenyl-2,3-dihydrothiophen-1,1-dioxide-4-hydroxide