label: 1,2-diaminocyclobutene-3,4-dione-4-(3,4-dioxo-2-(1,2,2-trimethylpropylamino)cyclobut-1-enylamino)-3-ethylbenzonitrile
label_lc: 1,2-diaminocyclobutene-3,4-dione-4-(3,4-dioxo-2-(1,2,2-trimethylpropylamino)cyclobut-1-enylamino)-3-ethylbenzonitrile