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FT-0663085 CAS:981-34-0 chemical structure

Betamethasone 9,11-Epoxide

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FT-0700093 CAS:981-34-0 chemical structure

Pregna-​1,​4-​diene-​3,​20-​dione, 9,​11-​epoxy-​17,​21-​dihydroxy-​16-​methyl-​, (9β,​11β,​16β)​-