CAS 965-93-5 Methyltrienolone Bulk trenbolone


chemical name: 4,9,11-estratrien-17beta-ol-3-one
molecular formula: c18h22o2
molecular weight: 270.37
cas no.: 10161-33-8
assay: 99.0%
standard: enterprise standard
Payment Method:  Money Gram/Western Union T/T , Bitcoin .


Trenbolone is a steroid used by veterinarians on livestock to increase muscle growth and appetite. To increase its effective half-life, trenbolone is not used in an unrefined form, but is rather administered as ester derivatives such as trenbolone acetate, trenbolone enanthate, or trenbolone cyclohexylmethylcarbonate (Parabolan). Plasma lipases then cleave the ester group in the bloodstream leaving free trenbolone.

Trenbolone is similar to the highly popular steroid Nandrolone, in that they are both 19-nor steroids, meaning that a testosterone molecule has been altered at the 19th position to give us a new compound. Unlike Nandrolone however Trenbolone is an excellent mass and hardening drug with the majority of gains being muscle fiber, with minimal water retention  It has an unbelievable anabolic (muscle building) score of 500. When you compare that to Testosterone, which itself is a powerful mass builder, and has an anabolic score of 100 you can begin to fathom the muscle building potential of Trenbolone. What makes Trenbolone so anabolic? Numerous factors come into play. Trenbolone greatly increases the level of the extremely anabolic hormone IGF-1 within muscle tissue . And, its worth noting that not only does it increase the levels of IGF-1 in muscle over two fold, it also causes muscle satellite cells (cells that repair damaged muscle) to be more sensitive to IGF-1 and other growth factors. The amount of DNA per muscle cell may also be significantly increased .

Trenbolone increases nitrogen retention in muscle tissue . This is of note because nitrogen retention is a strong indicator of how anabolic a substance is. However, it's incredible mass building effects do not end there. Trenbolone has the ability to bind with the receptors of the anti-anabolic (muscle destroying) glucocorticoid hormones . This may also has the effect of inhibiting the catabolic (muscle destroying) hormone cortisol.

In addition, Trenbolone is five times (5x) more powerful than testosterone in its androgenic effects. When talking about the androgen properties of a steroid, we are referring to effects like muscle hardness, strength gains, increasing metabolism and, in some users, increased “aggression”.

Trenbolone’s chemical structure keeps it from being turned into female hormones, like estrogen, by the aromatase enzyme, so estrogen side-effects are not a concern. Trenbolone’s chemical ring alterations keep the aromatase enzyme from attaching to it and imparting its “feminizing” structural changes. Since trenbolone cannot aromatize and will not cause water-retention, the muscle gains made on trenbolone are very hard and dry; in fact, some users report a very noticeable drying effect from this steroid.


Trenbolone compounds have a binding affinity for the androgen receptor five times as high as that of testosterone. Once metabolized, the drugs have the effect of increasing ammonium ion uptake by muscles, leading to an increase in the rate of protein synthesis. It may also have the secondary effects of stimulating appetite and decreasing the rate of catabolism, as all anabolic steroids are believed to; however, catabolism likely increases significantly once the steroid is no longer taken.Trenbolone has proven popular with anabolic steroid users, as some believe it is not metabolized by aromatase or 5α-reductase into estrogenic compounds such as estradiol, or into dihydrotestosterone; however, studies on this are mixed, with some studies showing a potential increase in both. At least one study in rats has shown trenbolone to cause gene expression with the androgen receptor at least as potent as DHT. This evidence tends to indicate Trenbolone can cause an increase in male secondary sex characteristics without the need to convert to dihydrotestosterone.

An anabolic steroid that is not used in human medicine, officially Trenbolone is classified as a veterinarian grade steroid. Originally developed to aid in the beefing up of cattle, what's good for a cow was soon found to be good for the athlete, and performance enhancers grabbed on with all their might. So much so, many performance enhancing athletes do not want to implement an anabolic steroid cycle without it.

For the off-season athlete, Trenbolone will provide solid gains in lean tissue, and while it's often thought of as a cutting steroid, its bulking power is tremendous. Further, as a non-aromatizing steroid, any and all weight gained due to this steroid's use will be nothing other than lean muscle tissue. No, it's not going to cause you to gain as much weight as many other steroids, but remember weight in of itself is not a good thing; it only becomes a good thing depending on the type of weight it is, we want muscle tissue, that's it, and that's exactly what Trenbolone will provide.

Dose ranges for trenbolone vary greatly depending on the ester preparation being used and the desired effects of the user. Trenbolone acetate is injected every day or every other day, in dosages ranging from 50mg per injection to, as high as, 200mg per injection.

Steroid users who inject the enanthate or hexahydrobenzylcarbonate version will usually inject the product weekly. The longer ester allows for a slower release of the hormone; thus, the steroid can be injected less often and in higher amounts. Athletes that use the longer ester versions of this product will usually inject between 200mg to 600mg of the product per week.

The oral version of trenbolone 17alpha-methyl-trenbolone, is so powerful and toxic, that only 0.5mg to 2mg of the product are needed daily to see and feel noticeable results.

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