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89720-58-1 4h-1-benzopyran-4-one,2,3-dihydro-2-(1-naphthalenyl)-3-(1-naphthalenylmethylene)-6-nitro-

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Product Name 4H-1-Benzopyran-4-one,2,3-dihydro-2-(1-naphthalenyl)-3-(1-naphthalenylmethylene)-6-nitro-
CAS No. 89720-58-1
Molecular Formula C30H19NO4