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Home › 7-Dimethylamino-3-substituted-2,2'-spirobi[2H-1-benzopyrans]

7-Dimethylamino-3-substituted-2,2'-spirobi[2H-1-benzopyrans]

US Patent 4342696 · Granted Aug 3, 1982

Estimated economic value: $2,368,000 ⓘ

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