1	INR	2',3-dioxo-1,1',2',3-tetrahydro-2,3'-biindole-5'-sulfonic acid	1.000
2	JY6	(3~{z})-3-(3-oxidanylidene-1~{H}-indol-2-ylidene)-1~{H}-indol-2-one	0.833
3	BRY	(2z)-5'-bromo-2,3'-biindole-2',3(1h,1'H)-dione ammoniate	0.800
4	IXM	(z)-1h,1'H-[2,3']biindolylidene-3,2'-dione-3-oxime	0.731
5	RYU	(2e,3s)-3-hydroxy-5'-[(4-hydroxypiperidin-1-yl)sulfonyl]-3-methyl-1,3-dihydro-2,3'-biindol-2'(1'H)-one	0.719
6	OFT	(3z)-N,N-diethyl-3-[(3e)-3-(hydroxyimino)-1,3-dihydro-2h-indol-2-ylidene]-2-oxo-2,3-dihydro-1h-indole-5-sulfonamide	0.710
7	BRW	6-bromoindirubin-3'-oxime	0.704