The present invention relates to the design of organic fluorescent materials, and specifically, the present invention relates to a benzobithiadiazole derivative represented by the following formula, a composition comprising the benzobithiadiazole derivative, a fluorescent probe comprising the benzobithiadiazole derivative or the composition, and a method for in vivo bioimaging using the same, wherein R1, R'1, R'2 and R2 are as defined in the specification.
Benzobithiadiazole derivative, super-bright near-infrared IIb region aggregation-induced emission probe containing benzobithiadiazole derivative and bioimaging application of benzobithiadiazole derivative