英文别名:
5,5'-Diamino-Δ3,3'(2H,2'H)-bipyridine-2,2',6,6'(1H,1'H)-tetraone;5-Amino-3-(5-amino-1,2,3,6-tetrahydro-2,6-dioxopyridin-3-ylidene)-2,6(1H,3H)-pyridinedione;Indigoidin;2,6(1H,3H)-Pyridinedione, 5-amino-3-(5-amino-1,6-dihydro-2,6-dioxo-3(2H)-pyridinylidene)-;Indigoidine;Veretexyn Blue