3H-Indol-2-yl cationic hydrazone dyestuffs

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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C07D20912, C07D40312

Patent

active

044967195

ABSTRACT:
Hydrazone dyestuffs of the formula ##STR1## in which R denotes optionally substituted alkyl,

REFERENCES:
patent: 3345355 (1967-10-01), Raue
patent: 3773764 (1973-11-01), Lehment et al.
patent: 3957765 (1976-05-01), Hofer et al.

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