申请人:Bayer Aktiengesellschaft
公开号:US04408056A1
公开(公告)日:1983-10-04
Nitrotrianthrimidecarbazoles of the formula ##STR1## in which the NO.sub.2 group is in the .alpha.- or .beta.-position and R.sub.1, r.sub.2 ; R.sub.3 and R.sub.4 designate hydrogen or halogen such as chlorine and bromine, their use as vat dyestuffs, a process for their preparation, and the use, as vat dyestuffs, of compounds which in the formula (I) have an NH.sub.2 group in place of the NO.sub.2 group.
公式为##STR1##的硝基三嗪咔唑,其中NO.sub.2基位于.alpha.或.beta.位置,R.sub.1,r.sub.2;R.sub.3和R.sub.4代表氢或卤素,例如氯和溴,它们作为靛染料的用途,制备它们的过程,以及在公式(I)中具有NH.sub.2基代替NO.sub.2基的化合物作为靛染料的用途。