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                                    标题
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                                                        17α-Ethyl-5β-estrane-3α,17β-diol 
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                                    IUPAC标准名
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                                                        (1R,2S,5R,7R,10R,11S,14S,15S)-14-ethyl-15-methyltetracyclo[8.7.0.02,7.011,15]heptadecane-5,14-diol
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                                    IUPAC传统名
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                                                        (1R,2S,5R,7R,10R,11S,14S,15S)-14-ethyl-15-methyltetracyclo[8.7.0.02,7.011,15]heptadecane-5,14-diol
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                                    别名
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                                                        (3α,5β,17α)-19-Norpregnane-3,17-diol
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                                                        19-Nor-5β,17α-pregnane-3α,17-diol
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