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77140-25-1 3h-2-benzopyran-3-one,1,4-dihydro-6,7-dimethoxy-4-(phenylmethylene)-

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CAS No. 77140-25-1
Product Name 3H-2-Benzopyran-3-one,1,4-dihydro-6,7-dimethoxy-4-(phenylmethylene)-
Molecular Formula C18H16O4