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White Powder Mibolerone Acetate For Bodybuilding CAS 3704-09-4 Basic info: CAS No:3704-09-4ATC code:noneMolecular Weight:302.4558Chemical Formula:C 20H 30O 2PubChem:*Assay/Purity:Typically NLT 99%IUPAC Name:(7α,17β)-17-hydroxy-7,17-dimethylestr-4-en-3-one Product Description:Mibolerones is a potent anabolic steroid which is both higher affinity and more selective for the androgen receptor than metribolone.The first step involves extending the conjugation of the enone function by an additional double bond. Chloranil (tetrachloroquinone) is the forerunner of dichlorodicyanoquinone (DDQ), a reagent used extensively for introducing additional unsaturation in the progestin and corticoid series. In the case at hand, heating acetate with chloranil gives the diene, and reaction of that compound with methylmagnesium bromide in the presence of cuprous chloride leads to addition of the methyl group to position 7 at the end of the conjugated system. The stereochemistry of the product again illustrates the preference for additions from the backside. The alcohol at C17 is then oxidized to a ketone. Enamines are commonly used to activate adjacent functions; they are also not infrequently used, as in this case, as protecting groups.