Synthesis and evaluation of organic pigments.: 2. Studies of bisazomethine pigments based on planar nonmutagenic benzidine analogs

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• 作者：Hinks ; David ; Freeman ; Harold S. ; Arai ; Yoshiaki ; Ando ; Hirohito
• 关键词：Bisazomethine pigment ; Benzidine ; Nonmutagenic
• 刊名：Dyes and Pigments
• 出版年：2001
• 期刊代码：31_01437208
• 类别：ms
• 出版时间：January, 2001
• 卷：48
• 期：1
• 页码：7-13
• 文件大小：246 K

摘要

The synthesis, characterization, genotoxicity and light fastness of thio- and oxopyrimidine based bisazomethine pigments prepared from a series of nonmutagenic benzidine congeners is reported. Whereas bisazomethine pigments based on benzidine and 3,3′-dimethylbenzidine were mutagenic in both the Ames assay and the Prival modification of the Ames assay, incorporation of bulky (>C₂) alkyl and alkoxy groups in the 3,3′- positions of the benzidine moiety gave nonmutagenic bisazomethine pigments.