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the total weight. In the case of testosterone enanthate for example, 250mg of esterified steroid
(testosterone enanthate) is equal to only 180mg of free testosterone. 70mgs out of each 250mg
injection is the weight of the ester. If we wanted to be really picky, we could consider enanthate
slightly MORE potent than cypionate (I know this goes against popular thinking) as its ester chain
contains one less carbon atom (therefore taking up a slightly smaller percentage of total weight).
Propionate would of course come out on top of the three, releasing a measurable (but not
significant) amount more testosterone per injection than cypionate or enanthate.
ESTER PROFILES
Sustanon: The "king" of testosterone blends.
The four different testosterone esters in this product certainly look appealing to the consumer,
there is no denying that. But for the athlete I think it is all just a matter of marketing (Hell,
why buy one ester when you can get four?). In clinical situations I can see some strong uses for
it. If you were undergoing testosterone replacement therapy for example, you would probably find
Sustanon a much more comfortable option than testosterone enanthate. You would need to visit the
doctor less frequently for an injection, and blood levels should be more steadily maintained
between treatments. But for the bodybuilder who is injecting 4 ampules of Sustanon per week, there
is no advantage over other testosterone products. In fact, the high price tag for Sustanon usually
makes it a very poor buy in the face of cheaper testosterone enanthate/cypionate. Bodybuilders
should probably stop looking at the four ester issue, and stick with totals (Sustanon is just a
250mg testosterone ampule). Were enanthate to be available for say $10 per amp of 250mg, and
Sustanon priced nearly double that, buying the Sustanon would be like throwing money away. If you
could get nearly double the milligram amount for the same price with enanthate, this is the better
product to go with hands down. Leave the high priced stuff for the guys who don't know any better.
IN CONCLUSION
While the advent of esters certainly constitutes an invaluable advance in the field of anabolic
steroid medicine, clearly you can see that there is no magic involved here. Esters work in a well-
understood and predictable manner, and do not alter the activity of the parent steroid in any way
other than to delay its release. Although the lure surrounding various steroid products like
testosterone cypionate, Sustanon, Omnadren etc. certainly makes for interesting conversation,
realistically it just amounts to misinformation that the athlete would be better off ignoring.
Testosterone is testosterone and anyone who is going to tell you one ester form of this (or any)
hormone is much better than another one should do a little more research, and a lot less talking.
Acetate: Chemical Structure C2H4O2.
Also referred to as Acetic Acid; Ethylic acid; Vinegar acid; vinegar; Methanecarboxylic acid.
Acetate esters delay the release of a steroid for only a couple of days. Contrary to what you may
have read, acetate esters do not increase the tendency for fat removal. Again, there is no known
mechanism for it to do so. This ester is used on oral primobolan tablets (metenolone acetate),
Finaplix (trenbolone acetate) implant pellets, and occasionally testosterone.
Propionate: Chemical Structure C3H6O2.
Also referred to as Carboxyethane; hydroacrylic acid; Methylacetic acid; Ethylformic acid;
Ethanecarboxylic acid; metacetonic acid; pseudoacetic acid; Propionic Acid. Propionate esters will
slow the release of a steroid for several days. To keep blood levels from fluctuating greatly,
propionate compounds are usually injected two to three times weekly. Testosterone propionate and
methandriol dipropionate (two separate propionate esters attached to the parent steroid
methandriol) are popular items.
Phenylpropionate: Chemical Structure C9H10O2.
Also referred to as Propionic Acid Phenyl Ester. Phenylpropionate will extend the release of
active steroid a few days longer than propionate. To keep blood levels even, injections are given
at least twice weekly. Durabolin is the drug most commonly seen with a phenylpropionate ester
(nandrolone phenylpropionate), although it is also used with testosterone in Sustanon and
Omnadren.
Isocarpoate: Chemical Structure C6H12O2
.
Also referred to as Isocaproic Acid; isohexanoate; 4-methylvaleric acid. Isocaproate begins to
near enanthate in terms of release. The duration is still shorter, with a notable hormone level
being sustained for approximately one week. This ester is used with testosterone in the blended
products Sustanon and Omnadren.
Caproate: Chemical Structure C6H12O2.
Also referred to as Hexanoic acid; hexanoate; n-Caproic Acid; n-Hexoic acid; butylacetic acid;
pentiformic acid; pentylformic acid; n-hexylic acid; 1-pentanecarboxylic acid; hexoic acid; 1-
hexanoic acid; Hexylic acid; Caproic acid. This ester is identical to isocarpoate in terms of atom
count and weight, but is laid out slightly different (Isocaproate has a split configuration,
difficult to explain here but easy to see on paper). Release duration would be very similar to
isocaproate (levels sustained for approximately one weak), perhaps coming slightly closer to
enanthate due to its straight chain. Caproate is the slowest releasing ester used in Omnadren,
which is why most athletes notice more water retention with this compound.
Enanthate: Chemical Structure C7H14O2.
Also referred to as heptanoic acid; enanthic acid; enanthylic acid; heptylic acid; heptoic acid;
Oenanthylic acid; Oenanthic acid. Enanthate is one of the most prominent esters used in steroid
manufacture (most commonly seen with testosterone but is also used in other compounds like
Primobolan Depot). Enanthate will release a steady (yet fluctuating as all esters are) level of
hormone for approximately 10-14 days. Although in medicine enanthate compounds are often injected
on a bi-weekly or monthly basis, athletes will inject at least weekly to help maintain a uniform
blood level
.
Cypionate: Chemical Structure C8H14O2.
Also referred to as Cyclopentylpropionic acid, cyclopentylpropionate. Cypionate is a very popular
ester here in the U.S., although it is scarcely found outside this region. Its release duration is
almost identical to enanthate (10-14 days), and the two are likewise thought to be interchangeable
in U.S. medicine. Althletes commonly hold the belief than cypionate is more powerful than
enanthate, although realistically there is little difference between the two. The enanthate ester
is in fact slightly smaller than cypionate, and it therefore releases a small (perhaps a few
milligrams) amount of steroid more in comparison.
Decanoate: Chemical Structure C10H20O2.
Also referred to as decanoic acid; capric acid; caprinic acid; decylic acid, Nonanecarboxylic
acid. The Decanoate ester is most commonly used with the hormone nandrolone (as in Deca-Durabolin)
and is found in virtually all corners of the world. Testosterone decanoate is also the longest
acting constituent in Sustanon, greatly extending its release duration. The release time with
Decanoate compounds is listed to be as long as one month, although most recently we are finding
that levels seem to drop significantly after two weeks. To keep blood levels more uniform,
athletes (as they have always known to do) will follow a weekly injection schedule.
Undecylenate: Chemical Structure C11H20O2.
Also referred to as Undecylenic acid; Hendecenoic acid; Undecenoic acid. This ester is very
similar to decanoate, containing only one carbon atom more. Its release duration is likewise very
similar (approximately 2-3 weeks), perhaps extending a day or so past that seen with decanoate. [ Pobierz całość w formacie PDF ]

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