| 摘要 |
The present invention relates to an antioxidative stilbene based fluorescent whitening agent denoted by chemical formula 1. In the chemical formula 1: M is hydrogen or an alkali metal atom; n is 0,1, or 2; at least one of R3 and R4 is substituted with a third butyl group; R1 is denoted by chemical formula 2; m is 0,1, or 2; R2 is denoted by chemical formula 3; R6 is hydrogen or methyl; and R5 is at least one selected from a compound substituted with at least one of C1-6 alkyl, OH, SO3M, and COOM, a compound denoted by chemical formula 4 with R7 formed of C1-C4 alkyl and C2-C4 hydroxyalkyl, and a compound selected from NH2 , -NH(C1-C4 alkyl), -N(C1-C4 alkyl)2, -NH(C2-C4 hydroxyalkyl), -N(C2-C4 hydroxyalkyl)2 ,-N(C1-C4 alkyl)(C2-C4 hydroxyalkyl), or -N(C1-C4 alkylamide)(C2-C4 hydroxyalkyl). |
