CAS 58-22-0 Testosterone


CAS 58-22-0 Testosterone 

Product Name:Testosterone Base 
Alias:Primoteston 
CAS: 58-22-0 
EINECS: 200-370-5 
Molecular formula:C19H28O2 
Molecular weight:288.42 
Melting Point:152-156 °C 
Assay: 99% 
Appearance:white crytalline powder 

Testosterone Base, a.k.a T.N.E, is an injectable steroid that contains testosterone with no ester attatched to it. It is pure testosterone and has no ester attached, and thus no ester calculated in the weight. 

Health Effects 

Testosterone is a steroid hormone from the androgen group and is found in humans and other vertebrates. In humans and other mammals, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. Small amounts are also secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid. 

In general, androgens promote protein synthesis and growth of those tissues with androgen receptors. Testosterone effects can be classified as virilizing and anabolic, though the distinction is somewhat artificial, as many of the effects can be considered both. 

1)Anabolic effects include growth of muscle mass and strength, increased bone density and strength, and stimulation of linear growth and bone maturation. 
2)Androgenic effects include maturation of the sex organs, particularly the penis and the formation of the scrotum in the fetus, and after birth (usually at puberty) a deepening of the voice, growth of the beard and axillary hair. Many of these fall into the category of male secondary sex characteristics. 
3)Testosterone effects can also be classified by the age of usual occurrence. For postnatal effects in both males and females, these are mostly dependent on the levels and duration of circulating free testosterone. 

Testosterone Base Sife Effects 

Testosterone Base aromatizes very easily and therefore estrogen build up and side effects can become an issue for users sensitive to these problems or those choosing to use a high dose of this compound. Therefore, when using Testosterone Base, bodybuilders often choose in incorporate an anti-estrogen such as Anastrozole, Proviron, Tamoxifen to help keep estrogen related side effects to a minimum. Extremely sensitive users, or users using very high doses (800-1200mgs) might find that stronger anti-estrogens such as Letrozole or Exemestane are more suitable. Androgenic side effects such as oily skin are also possible while taking Testosterone Base. 

Testosterone Base Stacking 

Bodybuilders looking to bulk up, often stack Testosterone Base with other steroids such as Deca 250 and/or Boldenone 200. 

Testosterone base dosage 

The male bodybuilder’s dosage of this steroid would typically be in 400-1200mg per week range and cycle duration would be from 8-20 weeks, depending of course on the goals of the athlete. Women typically see desirable results from doses of 50-100mgs per week.




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