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Clostebol Acetate (Megagrisevit mono)

Home >> Steroid Profiles >> Clostebol Acetate

by Bill Roberts - This steroid appears to be approximately as effective as Primobolan per milligram or moderately more so. The primary reasons for not using this steroid are its excessive cost and low concentration per mL, requiring large injection volume. It may have antiaromatase activity.

Clostebol acetate is the chemical name of active ingredient in Megagrisevit mono. Megagrisevit mono was a registered trademark of Pharmacia GmbH in Germany and/or other countries prior to cancellation.

Clostebol acetate chemical structure

Substance name

Clostebol acetate; Turinabol (do not confuse with Oral Turinabol); chlorotestosterone acetate
Chemical name* 17beta-Acetoxy-4-chloroandrost-4-en-3-one
Systematic name [(8S,9S,10R,13S,14S,17S)-4-chloro-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate
Index name Androst-4-en-3-one, 17-(acetyloxy)-4-chloro-, (17-beta)-
(9CI)
CAS number 855-19-6; 1093-58-9 (base)
Merck Index Number Merck 11, 2409
Molecular formula C21-H29-Cl-O3
Molecular weight 364.906
Legal status Illegal (US); DEA Schedule III (US)
Routes of administration Intramuscular
Year introduced 1984

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