COMPOUND FOR GENERATING SECOND HARMONIC OF LIGHT, DYE COMPOSITION FOR GENERATING SECOND HARMONIC OF LIGHT, AND CELL EXAMINATION METHOD

摘要

Provided are a compound that generates an SHG signal but has suppressed generation of a TPF signal. Also provided is a cell examination method using the same. A compound for generating a second harmonic of light, the compound being an azobenzene derivative of formula (1), or a salt thereof. (R1 and R2 independently represent alkyl groups having 6-12 carbon atoms, and R3 to R18 independently represent substituents selected from hydrogen, halogens, alkyl groups, alkoxy groups, aryl groups, amino groups, hydroxyl groups, nitro groups, and cyano groups, but R5 and R6, R9 and R10, R13 and R14, and R17 and R18 may combine together and form a ring structure having 5-7 carbon atoms. X represents —N+R19R20R21, a sulfonyl group, a carboxyl group, or an —OR group. Here, R19, R20, and R21 independently represent straight-chain or branched alkyl groups having 1-5 carbon atoms, and —OR represents a monovalent polyalkylene oxide group terminated by an alkoxy group. a is 0 or 1, b is 0 or 1, and n is an integer of 1-10.)

主权项

1. A compound for generating a second harmonic of light, the compound being an azobenzene derivative of the following formula (1), or a salt thereof: (wherein each of R1 and R2 independently represents a straight-chain or branched alkyl group having 6 to 12 carbon atoms, and each of R3 to R18 independently represents a substituent selected from hydrogen, halogen, an alkyl group, an alkoxy group, an aryl group, an amino group, a hydroxyl group, a nitro group and a cyano group, R5 and R6, R9 and R10, R13 and R14, and R17 and R18 may combine together and form a ring structure having 5 to 7 carbon atoms, X represents —N+R19R20R21, a sulfonyl group, a carboxyl group, or an —OR group, here, each of R19, R20 and R21 independently represents a straight-chain or branched alkyl group having 1 to 5 carbon atoms, and —OR represents a monovalent polyalkylene oxide group having an alkoxy group in the end,provided that a is 0 or 1, b is 0 or 1, and n is an integer from 1 to 10.)