5,7-dimethoxy-2,2-dimethylchromene
CAS号:21421-66-9，中文名：5,7-dimethoxy-2,2-dimethylchromene，英文名：5,7-dimethoxy-2,2-dimethylchromene,5,7-di...
5,7-dimethoxy-2,2-dimethylchromene
CAS号:21421-66-9，中文名：5,7-dimethoxy-2,2-dimethylchromene，英文名：5,7-dimethoxy-2,2-dimethylchromene,5,7-di...
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