(Q105185145)
Statements
C₂₀H₁₈O₄
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O=CC1(C)C2CCC3(OC41C(=O)C=5C=CC=CC5C(=O)C4=CC23)C
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C[C@@]12CC[C@H]3C1C=C1C(=O)c4ccccc4C(=O)[C@]1(O2)[C@]3(C)C=O
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group of stereoisomers with the chemical formula C₂₀H₁₈O₄