2,2,5-Trimethyl-6-methoxy-7-(cyclopentyloxy)-2H-1-benzopyran
2,2,5-Trimethyl-6-methoxy-7-(cyclopentyloxy)-2H-1-benzopyran ??
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2,2,5-Trimethyl-6-methoxy-7-(cyclopentyloxy)-2H-1-benzopyran C??? ??, ??, ??
2,2,5-Trimethyl-6-methoxy-7-(cyclopentyloxy)-2H-1-benzopyran ?? ?? ? ???
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2,2,5-Trimethyl-6-methoxy-7-(cyclopentyloxy)-2H-1-benzopyran ?? ??
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