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Home › Process for preparation of 1H-pyrazolo [1,5-b][1,2,4]triazole couplers and intermediate compounds

Process for preparation of 1H-pyrazolo [1,5-b][1,2,4]triazole couplers and intermediate compounds

US Patent 5248786 · Granted Sep 28, 1993

Estimated economic value: $7,466,000 ⓘ

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