CH3 O 11 H5C6-C-CH-CH3 DO™ D₂O O CD3 || | D5C6-C-CH-CD3 O || CD3 | O __II_ID_CD₂ H5C6-C-CD-CD3 O CH3 ||| H5C6-C-CH-CD3 H5C6-C-CD-CH3

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