Synonyms: 1-[(2e)-4-amino-2-imino-7,8-dimethylbenzo[g]pteridin-10(2h)-yl]-1-deoxy-d-ribitol sulfite(1:1);66495-68-9;AC1L4STA;AC1Q6YP3;KST-1B7167;AR-1B8593;2(4)-Imino-4(2)-amino-2,4-dideoxyriboflavin;1-(4-Amino-2-imino-7,8-dimethylbenzo(g)pteridin-10(2H)-yl)-1-deoxy-D-ribitol;(2R,3S,4S)-5-(4-amino-2-imino-7,8-dimethylbenzo[g]pteridin-10-yl)pentane-1,2,3,4-tetrol; sulfurous acid