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|1. (WO2018043579) PHOSPHA-RHODAMINE COMPOUND OR SALT THEREOF, AND FLUORESCENT DYE USING SAME|
|Applicants:||NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
GRZYBOWSKI, Marek Grzegorz
ガージボウスキー マレク グジャゴッシュ
|Title:||PHOSPHA-RHODAMINE COMPOUND OR SALT THEREOF, AND FLUORESCENT DYE USING SAME|
A phospha-rhodamine compound represented by general formula (1) (in the formula, R1 to R4 are the same or different and each represent a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted (hetero)aryl group; R5 represents a substituted or unsubstituted aryl group; R6 and R7 represent a hydrogen atom; R1 and R6 may be bonded to each other to form a substituted or unsubstituted alkylene group, and/or R3 and R7 may be bonded to each other to form a substituted or unsubstituted alkylene group; R8 represents a substituted or unsubstituted aryl group; and X represents a counterion) or salt thereof can provide a maximum fluorescence wavelength at a longer wavelength than conventional near-infrared fluorescent dyes and can do so without extending the conjugated system of the phospha-rhodamine skeleton.