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      CAS NO82-05-3
      ʽC17H10O
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      ҳ | ˾ | Ʒչʾ | ϵ | | | ߶ | English
      Ͳ޹˾ Ȩ(C)2011  ֧ й ȫ򻯹  Ȩ վͼ վ Ʒ  ³ICP11008768
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