荧光素是在产生生物发光的生物体中发现的发光化合物的通称。TokeOni是一种新的近红外发射荧光素类似物，发光峰在670 ~ 680 nm，峰值范围在近红外区。 应用： 生物成像。体内成像。 Luciferin is a generic term for the light-emitting compound found in organisms that generate bioluminescence.TokeOni is a new NIR emission luciferin analogue having luminescence peak at 670 ~ 680 nm with a peak range in the near-infrared (NIR) region.TokeOni has the enhanced solubility of >10 mg/mL compared to HCl free (0.2 mg/mL).Bioimaging.in vivoimaging.