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. Author manuscript; available in PMC: 2021 Jan 29.

Published in final edited form as: Bioconjug Chem. 2019 Aug 12;31(2):194–213. doi: 10.1021/acs.bioconjchem.9b00482

Table 1.

Photophysical Properties of Squaraine Dyes in a Nonpolar Solvent (Chloroform)^66–69

Dye structure	λ_abs (nm)	λ_em (nm)	Stokes shift (nm)	ε, ×10⁵ (M⁻¹cm⁻¹)	Quantum yield
	684	697	13	2.80	-
	628	656	28	3.19	0.89
	632	664	32	1.20	0.81
	635	668	33	1.66	0.35
	665	687	22	1.90	0.05
	666	691	25	1.10	0.16
	677	702	25	1.80	0.26
	704	724	20	1.78	0.13