30119-42-7(标准品)2-Amino-4,5-dihydro-5-hydroxy-4,4-dimethyl-naphtho[1,2-b:4,3-b’]difuran-3-carboxylic acid methyl ester
30119-43-8(标准品)2-Amino-4,5-dihydro-5-hydroxy-4,4-dimethyl-naphtho[1,2-b:4,3-b’]difuran-3-carboxylic acid ethyl ester
30119-49-4(标准品)2-Amino-4,5-dihydro-5-hydroxy-4,4-dimethyl-naphtho[1,2-b:4,3-b’]difuran-3-carbonitrile
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