Colorant compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Polycyclo ring system containing anthracene configured ring...

Reexamination Certificate

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C546S102000

Reexamination Certificate

active

07485737

ABSTRACT:
A compound of the formulawherein R1, R2, R3, R4, R5, R6, R′, R″, Y, CA+, and A−each, independently of the others are as defined herein.

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