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CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity Increase Sexual Desire Hair

CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity Increase Sexual Desire Hair

  • CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair
  • CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair
  • CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair
  • CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair
CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair
Product Details:
Place of Origin: China
Brand Name: Top Pharm
Certification: IOS 901
Model Number: 13103-34-9
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Minimum Order Quantity: 10g
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Detailed Product Description
Appearance: White Loose Lyophilized Powder. Purity: 99%
Spec: 10G CAS: 13103-34-9
MF: C30H44O3 MW: 452.67
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Increase Sexual Desire Boldenone Undecylenate Powder


99% Purity Boldenone Undecylenate Powder


CAS 13103-34-9 Raw Testosterone Powder

Boldenone Undecylenate

CAS NO.: 13103-34-9
Molecular Formula: C30H44O3
Molecular weight: 452.67
Assay: 97.0~103.0%
Standard: Enterprise Standard


Boldenone undecylenate


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Boldenone undecylenate
Boldenone undecylenate molecule ball.png
Clinical data
Trade names Boldane, Equipoise, Parenabol, Vebonol, others
Other names Boldenone undecenoate; Ba 29038; Boldenone 17β-undec-10-enoate; Δ1-Testosterone 17β-undec-10-enoate; 1-Dehydrotestosterone 17β-undec-10-enoate; Androsta-1,4-dien-17β-ol-3-one 17β-undec-10-enoate
Routes of
Intramuscular injection
Drug class Androgen; Anabolic steroid; Androgen ester
ATC code
  • None
Legal status
Legal status
Pharmacokinetic data
Elimination half-life Intramuscular: 14 days[1]
CAS Number
PubChem CID
CompTox Dashboard (EPA)
ECHA InfoCard 100.032.734 Edit this at Wikidata
Chemical and physical data
Formula C30H44O3
Molar mass 452.679 g·mol−1
3D model (JSmol)

Boldenone undecylenate, or boldenone undecenoate, sold under the brand names Equipoise and Parenabol among others, is an androgen and anabolic steroid (AAS) medication which is used in veterinary medicine, mainly in horses. It was formerly used in humans as well. It is given by injection into muscle.

Side effects of boldenone undecylenate include symptoms of masculinization like acne, increased hair growth, voice changes, and increased sexual desire.[6] The drug is a synthetic androgen and anabolic steroid and hence is an agonist of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT). It has strong anabolic effects and moderate androgenic effects, weak estrogenic effects, and no risk of liver damage.Boldenone undecylenate is an androgen ester and a long-lasting prodrug of boldenone in the body.

Boldenone undecylenate was introduced for medical use in the 1960s.In addition to its medical use, boldenone undecylenate is used to improve physique and performance.The drug is a controlled substance in the United States and its use is generally illicit.It remains marketed for veterinary use in Australia and the United States.



Boldenone undecylenate is used in veterinary medicine, mainly in horses.


Boldenone undecylenate was formerly used in clinical medicine in humans, but was discontinued. The drug is currently not approved by Food and Drug Administration. It is also classified as DEA Schedule III controlled substance.

Side effects



Boldenone undecylenate is a prodrug of boldenone, and hence is an agonist of the androgen receptor.[6] Boldenone has strong anabolic effects and moderate androgenic effects. It also has low estrogenic activity and has little or no progestogenic activity.[6] In relation to the fact that it is not 17α-alkylated, boldenone and boldenone undecylenate have little or no risk of hepatotoxicity.


Boldenone undecylenate is a prodrug of boldenone. When administered via intramuscular injection, a depot is formed from which boldenone undecylenate is slowly released into the body and then transformed into boldenone. The drug possess a biological half-life of 14 days when administered by intramuscular injection. Boldenone is a substrate for 5α-reductase and may be converted by this enzyme into 1-testosterone1-dihydrotestosterone, δ1-DHT, dihydroboldenone) in tissues that express it such as the skin, hair follicles, and prostate gland. However, its affinity for this enzyme is said to be extremely low.


Boldenone undecylenate, or boldenone 17β-undec-10-enoate, is a synthetic androstane steroid and a derivative of testosterone. It is the C17β undecylenate (undecenoate) ester of boldenone1-testosterone, 1-dehydrotestosterone, or androsta-1,4-dien-17β-ol-3-one), which itself is the C1(2) dehydrogenated analogue of testosterone and a naturally occurring androgen found in the scent gland of Ilybius fenestratus (a species of aquatic beetle).[2][3][6] Boldenone is the non-17α-alkylated variant of metandienone (17α-methyl-δ1-testosterone). An AAS related to boldenone undecylenate is quinbolone1-testosterone 17β-cyclopentenyl enol ether).



CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair 3




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Testosterone cypionate is a prescription drug. It comes as an injectable solution given into the muscle. Testosterone cypionate is a self-injectable drug. You can give this medication to yourself at home after your doctor shows you how to do so.

Testosterone cypionate is available as the brand-name drug Depo-Testosterone. It’s also available as a generic drug. Generic drugs usually cost less than the brand-name version. In some cases, they may not be available in every strength or form as the brand-name drug.

Testosterone cypionate is a controlled substance. This means it’s regulated by the government.

 CAS 13103-34-9 Boldenone Undecylenate Powder 99% Purity  Increase Sexual Desire Hair 4

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