Clostebol Acetate Steroid Powder Bodybuilding CAS:855-19-6
Clostebol Acetate, chemically known as 4-chlorotestosterone acetate, is a synthetic anabolic-androgenic steroid (AAS) derived from testosterone. Developed in the 1960s, it features a chlorine atom at the fourth carbon position, reducing its androgenic potency while retaining anabolic properties.
Introduction to Clostebol Acetate
Clostebol Acetate, chemically known as 4-chlorotestosterone acetate, is a synthetic anabolic-androgenic steroid (AAS) derived from testosterone. Developed in the 1960s, it features a chlorine atom at the fourth carbon position, reducing its androgenic potency while retaining anabolic properties. Unlike many steroids, it's known for its mild nature, making it a niche choice for athletes prioritizing minimal side effects.
Chemical Structure and Features
●4-Chloro Substitution: This modification lowers binding affinity to androgen receptors, reducing virilization risks and making it suitable for cutting cycles.
●Acetate Ester: Enhances lipid solubility, allowing for slower release and shorter half-life compared to non-esterified forms.
●Anabolic-to-Androgenic Ratio: Approximately 25:1, favoring muscle growth over masculinizing effects.
Applications in Bodybuilding
●Cutting Phases: Preserves lean muscle during caloric deficits due to anti-catabolic effects.
●Muscle Definition: Promotes dryness and vascularity without water retention.
●Female Use: Lower virilization risk makes it accessible to female athletes in controlled doses.
Benefits Over Other Steroids
●Reduced Side Effects: Minimal impact on blood pressure, liver enzymes, and lipid profiles.
●Hepatotoxicity: Not 17-alpha alkylated, reducing liver strain compared to oral AAS.
●Subtle Gains: Ideal for athletes avoiding dramatic physique changes.
Dosage and Administration
●Male Dosage: 40–80 mg daily via intramuscular injection, typically divided into every-other-day administrations.
●Female Dosage: 10–20 mg daily to mitigate virilization risks.
●Cycle Length: 6–8 weeks standalone; extended to 10–12 weeks when stacked with non-methylated compounds.
Pharmacokinetics and Half-Life
●Half-Life: ~2–3 days due to acetate ester, necessitating frequent injections.
●Metabolism: Rapidly hydrolyzed in muscle tissue, with metabolites excreted renally.
Post-Cycle Therapy (PCT)
●Purpose: Restore endogenous testosterone production post-cycle.
●Protocol: SERMs like Tamoxifen (20 mg/day) or Clomiphene (50 mg/day) for 3–4 weeks, starting 3 days post-cycle.
●Monitoring: Blood work (LH, FSH, testosterone) to assess recovery.
Safety and Side Effects
●Common: Mild androgenic effects (acne, hair loss) in genetically predisposed users.
●Rare: Testosterone suppression, lipid imbalances.
●Contraindications: Pre-existing cardiovascular or hepatic conditions.
Legal and Ethical Considerations
●WADA Status: Banned in competitive sports; detectable via metabolite testing.
●Prescription Requirements: Classified as Schedule III in the U.S.; illegal without medical authorization.
Comparisons to Similar Steroids
●vs. Primobolan: Both mild, but Clostebol is more cost-effective and less likely to cause virilization.
●vs. Winstrol: Clostebol lacks joint toxicity and is preferable for endurance athletes.
User Experiences and Misconceptions
●Anecdotal Reports: Users note enhanced endurance and muscle retention but criticize mild results.
●Myth-Busting: Despite being "gentle," it still requires PCT and carries legal risks.
Historical and Veterinary Use
Originally developed for muscle-wasting conditions, it's now used in veterinary medicine for wound healing (e.g., Neomycin-Clostebol topical creams).
Storage and Handling
●Powder Stability: Store in airtight containers at 15–30°C, protected from humidity.
●Reconstitution: Dissolved in bacteriostatic water or oil-based carriers for injections.
Future Prospects
Research into its anti-inflammatory properties and potential for medical muscle preservation could revive interest, though legal barriers persist.
Clinical Data
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Trade names |
Macrobin, Steranabol, Alfa-Trofodermin, Megagrisevit,4-Chlorotestosterone acetate; 4-CLTA; 4-Chloroandrost-4-en-17β-ol-3-one 17β-acetate; NSC-72159 |
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CAS |
855-19-6 |
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Molar mass |
364.91 |
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Formula |
C21H29ClO3 |
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Purity |
Above 98% |
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Apprarance |
White Crystalline Powder |
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Conclusion
Clostebol Acetate offers a balanced option for athletes seeking moderate gains with reduced risks. Its niche status underscores the importance of informed use, emphasizing health monitoring and legal awareness.
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