Description

Technical Parameters

Clostebol Acetate Core Introduction

Pharmaceutical Grade Ingredients | 4-Chlorotestosterone Acetate Anabolic Steroid

Chemical Name : 4-Chloro-17β-acetoxy-androst-4-en-3-one

CAS number : 855-19-6

Molecular formula : C₂₁H₂₉ClO₃

Molecular weight : 364.91

Melting point : 162-165°C

Appearance : White crystalline powder

Core Effects

Clostebol Acetate is a 4-chlorotestosterone derivative widely used for muscle growth, athletic performance enhancement, and medical applications due to its low androgenic activity and significant anabolic properties .

✅ Pure Muscle Growth :

High anabolic index (90-150), promoting protein synthesis

Low androgenic activity (androgenic index 25), low risk of side effects

✅ Medical application value :

Treat muscle atrophy and increase lean body mass

Promote wound healing and accelerate tissue repair

✅ Competitive Advantages :

Does not aromatize to estrogen , no sodium retention and risk of estrogen-producing milk

Short detection window and long history of application in competitive sports

End Product Preparation Guidelines

1. Preparation of Injectable Oil (50 mg/mL) :

Formulation example (preparation volume for 100mL):

Chlortestosterone acetate raw material: 5.0g

Benzyl alcohol: 2.0 mL

Cottonseed oil: 93.0 mL

Preparation process :

Raw material pretreatment : micronization (D90≤10μm)

Dissolving and mixing : Heat in a 40°C water bath to accelerate dissolution

Sterile filtration : 0.22μm membrane positive pressure filtration

Subpackaging : Subpackaging into sterile injection bottles under aseptic environment

Quality Control :

HPLC assay : 90-110% labeled amount

Endotoxin detection : <0.5EU/mL

Sterility test : 14 days of incubation by membrane filtration

2. Preparation of topical preparation (1% ointment) :

Recipe example (100g preparation):

Chlortestosterone acetate raw material: 1.0g

White vaseline: 25.0g

Lanolin: 10.0g

Liquid paraffin: 64.0g

Preparation process :

Oil phase preparation : Melt the oily matrix at 70°C

Drug dispersion : Dispersing micronized raw materials in the oil phase

Homogenizing filling : filling after homogenization by homogenizer

Preparation Characteristics

Solubility Properties :

Good oil solubility , easily soluble in vegetable oil

Heating accelerates dissolution , 40-50°C water bath is optimal

Stability :

Store away from light , chlorinated structure is light sensitive

Stable at room temperature , no special storage conditions required

Dosage Form Selection :

Injection : high bioavailability and rapid onset of action

Topicals : Local action, low systemic exposure

Why choose chlortestosterone acetate ?

Safe anabolic agent with low risk of androgenic side effects

Multiple application scenarios , flexible injection and topical dosage forms

Outstanding medical value , dual purpose of treatment and enhancement

Quality Assurance :

GMP -compliant production , each batch HPLC purity tested (≥98% )

Third-party laboratory report (COA) is included with the goods

Microbial limit testing to ensure safety

Worldwide Shipping :

Original sealed packaging , moisture-proof and light-proof

Private delivery , no logo on the outer packaging

Temperature- stable transportation to ensure product stability

Conclusion

Chlortestosterone acetate raw material can be prepared into injectable or topical formulations through aseptic processing , making it particularly suitable for low-side effect muscle growth, medical rehabilitation, and local treatment applications .

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