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• 

  Estratetraenol

  CAS No. 1150-90-9

  Chemical Formula : C18H22O

  STD No. 3322E

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• 

  Estratetraenol Impurity 1

  CAS No. 28336-31-4

  Chemical Formula : C19H24O

  STD No. 33221E

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  Estratetraenol Impurity 2

  CAS No. 17253-36-0

  Chemical Formula : C19H22O2

  STD No. 33222E

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• 

  Estratetraenol Impurity 3

  CAS No. 6030-83-7

  Chemical Formula : C19H22O2

  STD No. 33223E

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  Estratetraenol Impurity 4（3MeE2-8-en）

  CAS No. 13587-68-3

  Chemical Formula : C19H24O2

  STD No. 33224E

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