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55004-70-1 2h-1-benzopyran-2-one, 4-hydroxy-6,7-dimethyl-3-nitro-, sodium salt

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Product Name 2H-1-Benzopyran-2-one, 4-hydroxy-6,7-dimethyl-3-nitro-, sodium salt
CAS No. 55004-70-1
Molecular Formula C11H9NO5・Na