Isoindoline colorants

Details Isoindoline colorants Isoindoline colorants

1980-04-04

1982-02-16

Coughlan, Jr., Paul M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

106 23, 106288Q, 260 37P, C09B 5704

Patent

active

043160239

ABSTRACT:
Isoindoline colorants of the general formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl,

REFERENCES:
patent: 3646033 (1972-02-01), Leister et al.
patent: 3991054 (1976-11-01), Bock et al.

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