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FT-0686682 CAS:20315-25-7 chemical structure

2,2'-Bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-2H,2'H-4,8'-bichromene-3,3',5,5',7,7'-hexol

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FT-0777556 CAS:20315-25-7 chemical structure

Procyanidin B1