Drostanolone Propionate (Masteron)

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Drostanolone Propionate (Masteron)

Product name: Drostanolone propionate
Alias: Masteron
CAS No: 521-12-0
Einecs No: 208-303-1
MF: C23H36O3
MW: 360.53
Appearance: white crystalloid powder and yellow liquid
Usage: As a therapeutic agent, Masteron enjoyed two decades of success in combating advanced inoperable breast cancer in postmenopausal women. It would also become a popular cutting steroid among bodybuilders, which is where Masteron is currently most commonly found.

Masteron description

Originally Dromostanolone (abbreviated to Drostanolone) known by trade name Masteron is an injectable oil-based anabolic steroid, derived from Dihydrotestosterone (DHT). It is a member of the DHT-derived family of anabolic steroids. Other known DHT-derivatives include: Winstrol, Anadrol, Anavar, Primobolan, and a few more. Drostanolone (Masteron) is considered a moderate strength anabolic steroid with anabolic rating: 62 - 130 and low androgenic strenght: 25 - 40.

There are two different variants of Masteron

Drostanolone Propionate
Drostanolone Enanthate


All anabolic steroid analogues and derivatives are derivates of the three natural anabolic steroids found in the human body:

Testosterone
Dihydrotestosterone
Nandrolone

Drostanolone is injected into the body as an ester (bonded to either Propionate or Enanthate). Enzymes cleave off the ester from the Masteron molecule - which takes varying amount of time depending on which ester was used. This process causes the gradual release rate and extended half-life of the steroid. Drostanolone Propionate has a half-life of 2.5 days, while Drostanolone Enanthate has a half-life of 10 days.