C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/236.22
C09B 3/02 (2006.01)
Patent
CA 1061784
Abstract of the Disclosure The present invention pertains to novel intermediates useful in the preparation of novel dyestuffs. The novel intermediates of the present invention are 2-cyano-3-amino-benzanthrones of the formula Image wherein R4 represents a halogen atom, a lower alkyl group or a hydrogen atom.
313664
Dengler Siegfried
Loew Peter
Schwander Hansrudolf
Zickendraht Christian
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