117907-48-9Relevant academic research and scientific papers
Hair dye preparations containing nitrodiphenylamine derivative
-
, (2008/06/13)
This invention encompasses compounds of the formula STR1 wherein R1 and R2 independently are hydrogen, C1-4 alkyl, or C2-4 hydroxyalkyl; one of R3 to R7 is --SO3 H or --COOH; and the remaining of R3 to R7 independently are hydrogen, chlorine, C1-4 alkyl, C1-4 alkoxy, or --NR8 R9, where R8 and R9 independently are hydrogen, C1-4 alkyl, C2-4 alkoxy, or where --NR8 R9 is piperidine, morpholine, piperazine, or pyrrolidone; or a water soluble salt thereof; hair dye preparation containing these compounds, and methods for dyeing hair using such preparation.
