| 摘要 |
<p>New trisazo compounds that are useful as developed direct black dyes for cellulosic textiles and as self-shade dyes for paper and leather having the structure: <IMAGE> wherein R' is at least one of the following groups: <IMAGE> and M is H, Na, K, Li, N(R)3H where R is H, lower alkyl or lower hydroxyalkyl and each of the R groups can be the same or different.</p> |
