Mesoionic 1,2,4-triazolium silver halide stabilizer precursors

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

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430354, 430419, 430428, 430456, 430560, 430566, 430611, 430613, 430619, 430955, C07D24910

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active

044043902

ABSTRACT:
Mesoionic 1,2,4-triazolium-3-thiolate silver halide stabilizer precursors are novel compounds useful in a heat developable and heat stabilizable photographic silver halide materials and processes. After imagewise exposure of the photographic material, a developed and stabilized silver image is produced by heating the element. Mesoionic stabilizer precursors are also useful in photographic silver halide processing compositions.

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