Trisazo dye

Details Trisazo dye Trisazo dye

1973-11-07

1984-10-30

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260166, 260171, 260173, 260178, 260198, C09B 3322, C09B 3540, C09B 3542, C09B 3544

Patent

active

044799063

ABSTRACT:
Trisazo dyes containing sulfo groups and having the formula: ##STR1## which for the most part give black colorations on paper and particularly on leather and are therefore especially useful as leather dyes.

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patent: 2157295 (1939-05-01), Lier
patent: 2296925 (1942-09-01), Hitch
patent: 2671776 (1954-03-01), Gunst
patent: 2731459 (1956-01-01), Gunst
patent: 3467645 (1969-09-01), Keller et al.

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