Chemical Machinery

Pharmaceutical Drostanolone Masteron Drostanolone Enanthate CAS 472-61-145


Quick Detail

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Synonyms | DROSTANOLONEENANTHATE;Inhouse;MastE;DroMostanoloneEnanthate |
MF | C27H44O3 |
MW | 416.64 |
CAS | 472-61-145 |
Assay | 99%min. |
Standard | BP/USP |
Packing | Foil bag or tin. |
Delivery | Express courier. |
Character | White crystalline powder. |
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Usage: Pharmaceutical material, Steroid hormone, Anabolin. As a male hormone and anabolic hormones.

Drostanolone Enanthate is strictly an undergroundanabolic androgenic steroid that is based on the discontinued Drostanolone Propionate compound known as Masteron. Masteron is a fairly old anabolic steroid first created in 1959 by Syntex and has been sold under several other brand names such as Masteril, Drolban and Metormon with Masteron remaining the most recognizable.


During the 1970’s and 80’s Masteron enjoyed significant therapeutic success, particularly in the treatment of inoperable breast cancer. Despite its success in cancer treatment and other areas of medicine, in the late 1980’s and early 1990’s Masteron began to disappear from the U.S. and European markets and in modern times is no longer manufactured. Drostanolone is still an FDA approved anabolic steroid, but no U.S. pharmacy manufactures it.


During the 1970’s and heavily in the 1980’s Masteron become very popular among competitive bodybuilders. In fact, it has come to be viewed as an essential for contest prep for many bodybuilders and is a common favorite among recreational bodybuilders during their cutting cycles. Due to the Propionate ester that is attached Masteron must be injected at minimum three times per week with an every other day schedule being the most efficient. Because of the need for frequent injections and high demand for the steroid, many underground labs began manufacturing the Drostanolone hormone with the Enanthate ester attached. The new combination become very prominent in the early 2000’s and as such Masteron Enanthate was born. Masteron Enanthate is the same anabolic steroid as Masteron Propionate; the hormone itself has not been changed. The only difference in the two compounds is the attached ester, which affects the drug’s active life and release into the body.


Masteron Enanthate Functions & Traits:

Masteron Enanthate (Drostanolone Enanthate) is a dihydrotestosterone (DHT) based anabolic steroid. Drostanolone is simply the DHT hormone structurally altered. The alteration exists through the addition of a methyl group at carbon position 2. This ensures the hormone doesn’t suffer metabolic breakdown brought on by the 3-hydroxysteroid dehydrogenase enzyme found in the skeletal muscle. This simple structural change also makes the hormone far more anabolic, and that gives us Drostanolone. Once the hormone has been created, altered from DHT, an ester is then attached, and in this case the ester attached is Enanthate. Enanthate is not a steroid or a drug but nothing more than a timing tool used for a drug.


As with Masteron Propionate, Masteron Enanthate is well known for being one of the only anabolic steroids that carries strong anti-estrogenic properties. This anabolic steroid cannot increase estrogen levels; in fact, it can actually decrease estrogen levels in the body. It is for this reason Drostanolone was successful in breast cancer treatment with the combination of Drostanolone and Tamoxifen being very commonplace for many years. Bodybuilders welcome this trait due to estrogen often being difficult to control with many steroids and lower estrogen levels often leading to a harder and more defined look during the cutting phase.


Masteron Enanthate possesses some of the most misleading anabolic and androgenic ratings of any anabolic steroid, although not nearly as misleading asHalotestin and Anavar. Drostanolone has a binding affinity to the androgen receptor that is five times greater thantestosterone, which not only produces a harder look it can also have a positive impact on fat loss. All anabolic steroids can help improve the metabolic rate, but those with a strong androgen binding affinity can have an impact on direct lipolysis.

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Effects of Masteron Enanthate

For the full positive effects of Masteron Enanthate to be seen a lean physique will show them best. This means the prime time for this steroid will be during a cutting cycle, and the leaner the individual is the more pronounced the effects will be. For the competitive bodybuilder undergoing a 12-16 week prep, you will find Masteron most commonly shows up in the latter half of prep once a significant amount of fat has been removed. The addition of the Drostanolone hormone may help him lose a little bit of the fat that’s still hanging on but more importantly it will ensure his physique possess the hard look that’s desired.
For the recreational bodybuilder or steroid user, one that’s not going to be as lean as a competitive bodybuilder, Masteron Enanthate is still a good choice for a cutting cycle. You may not end up as hard as the competitive bodybuilder due to not being quite as lean but hardness will appear nonetheless. However, if there is a significant layer of fat coving the body it may be very hard to find any noticeable benefit in terms of hardness and definition. This truly is a steroid that works best when already lean in regards to hardness.

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While lean use is the best use for hardening it is not the only use for this anabolic steroid. Masteron Enanthate is a good choice for the athlete looking for a boost in strength and more so than often given credit for. Most steroid users only use Masteron when cutting, when calories are low and strength is necessarily diminished. But for an athlete looking for a boost in strength with little to no weight gain, this can be a solid choice. The athlete should also find improvements in recovery and muscular endurance, and regardless of the end goal recovery and endurance are both invaluable.


We’re then left with bulking use and while any anabolic steroid can be used for bulking Masteron Enanthate is perhaps one of the worst choices. The Drostanolone hormone doesn’t pack the punch needed for significant growth. Some growth may occur especially with a very high dose but there are far better options. There are those that will include low to moderate amounts of Masteron Enanthate in their cycle for the anti-estrogen benefits during the bulking phase, but when we’re talking about a bulking cycle that often includes high doses of testosterone this will not be enough to combat thearomatase induced estrogenic activity.

Masteron Enanthate Administration

Most men will dose Masteron (Propionate version) at 300-400mg per week. Because the Enanthate ester is larger than the Propionate ester this means it takes up more space in the total compound. Dosing may need to be adjusted upwards to garner the same amount of active Drostanolone when using the Enanthate version. An increase by 100mg per week should do the trick. Regardless of the dose, the total weekly dose may be split into two equal size injections per week, such as one on Monday and one on Thursday. Total use will last anywhere from 6-12 weeks depending on need.
Because of the potential for virilization recommended doses of Masteron Enanthate are not provided for women. Propionate versions are the only ones women should consider. Please see the Masteron profile for related information.


Availability of Masteron Enanthate

Masteron Enanthate has become one of the more commonly available anabolic steroids carried by underground labs in recent years. It was very rare in the 90’s and started to increase in availability in the early 2000’s but only in recent years has it become a more regularly available item. The Enanthate version will normally cost a little more than the Propionate version, but on the black market prices shouldn’t be too steep.

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