Table 1.

The Names, Structures and IC50 Data of Trimethine Cyanine Compounds.

Type of compound	Name	Structure	IC50 (μM)
Group A Trimethine cyanine compounds containing benzo[c,d]indolium groups in the two ends	11 [MHI-21]		4.1 ± 0.1
	12 [MHI-06]		12.0 ± 0.5
	13 [MHI-36]		15.5 ± 0.2
Group B Trimethine cyanine compounds containing indolium groups in the two ends.	22 [E-14]		284.2 ± 3.5
	23 [E-6]		160.8 ± 1.2
	24 [E-4]		6.3 ± 0.3
	28 [A-C3]		368.3 ± 25.9
	29 [A-N3]		291.7 ± 40.1
	30 [MHI-106]		At 100 μM concentration 80% activity retained
	31 [MHI-128]		At 100 μM concentration 95% activity retained
Group C Trimethine cyanine compounds containing benzo[e]indolium group as the end units	25 [E-5]		20.3 ± 0.2
	26 [E-18]		18.0 ± 0.5
	27 [E-8]		14.3 ± 0.2