99% Purity Trenbolone Acetate/TRA CAS 10161-34-9 gain muscles for building body

Trenbolone Acetate
Chemical Name: 4,9,11-estratrien-17beta-ol-3-one Acetate
CAS NO.: 10161-34-9
Molecular Formula: C20H24O3
Molecular weight: 312.4
Standard: USP28/BP2003

Abstract

Little is known concerning the potential ecological effects of hormonally active substances associated with discharges from animal feeding operations. Trenbolone acetate is a synthetic anabolic steroid that is widely used in the United States to promote growth of beef cattle. Metabolites of trenbolone acetate include the stereoisomers 17α- and 17β-trenbolone, both of which are stable in animal wastes and are relatively potent androgens in fish and mammals. Our purpose in this study was to evaluate the occurrence of 17α- and 17β-trenbolone in a beef cattle feedlot discharge and in river water upstream and downstream from the discharge. In conjunction with that effort, we measured in vitro androgenic activity of the discharge using CV-1 cells that had been transiently cotransfected with human androgen receptor and reporter gene constructs. Samples were collected on nine different occasions during 2002 and 2003. Whole-water samples from the discharge caused a significant androgenic response in the CV-1 cells and contained detectable concentrations of 17α- and 17β-trenbolone. Further work is needed to ascertain the degree to which synthetic androgens such as trenbolone contribute to androgenic activity of feedlot discharges.

 

Hormonal Effects

Growth-promoting hormones, such as steroids and xenobiotics, have been used legally and illegally to increase live-weight gain and feed efficiency in various species, more intensively in cattle and to lesser extent in ovine, swine, poultry, and fish. Promoting steroid hormones can be divided into four groups of molecules: (1) natural steroids (oestradiol-17β, progesterone, testosterone); (2) xenobiotics (trenbolone acetate and zeranol); (3) synthetic steroids (ethinylestradiol, methyltestosterone, chlormadinone acetate, and others); and (4) diethylstilbestrol (DES) and related substances (hexestrol, dienestrol).

 

 

 

 

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