6-OXO / 4-Androstenetrione CAS 2243-06-3

01 Overview

4-Androstene-3,6,17-trione (4-AT; also marketed as 6-OXO or 4-etioallocholen-3,6,17-trione) is a drug or nutritional supplement that may increase the testosterone-estrogen ratio, but has no proven effect on body composition.

02 Details

Estrogen Steroids 4-Androstene-3,6,17-trione (6-OXO ,  4-Androstenetrione) For Men CAS:2243-06-3


CAS: 2243-06-3
Molecular Weight: C19H24O3
Molecular Formula: 300.39
Melting Point: 223-224° C
Package: Foil bag or tin, or as you require
Properties: White powder
Usage: Steroid drug intermediates. Low Estrogen Levels.


6-OXO Details


Product Name: Androst-4-ene-3,6,17-trione
Synonyms: 4-ANDROSTEN-3,6,17-TRIONE;4-ANDROSTENE-3,6,17-TRIONE;ANDROST-4-ENE-3,6,17-TRIONE;4-Androstenetrione;4-Androstenetriol;(8R,9S,10R,13S,14S)-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,6,17-trione
CAS: 2243-06-3
MF: C19H24O3
MW: 300.39
Product Categories: Steroids & Hormones – 13C & 2H;Steroids
Mol File: 2243-06-3.mol


Androsterone is one of the androgens, which are steroid hormones that affect the masculinization of the fetus and child and that maintain or create masculine traits in adults. Testosterone is the most active and abundant of the androgens. Androsterone was originally isolated from male urine in very small amounts. Many scientists believe it to be a metabolic byproduct of the breakdown of testosterone, and many scientists who study pheromones think it might be active in human relations.

A molecule of androsterone is very similar to testosterone. It consists of three six-member carbon rings and one five member ring joined along common sides. The molecular formula is C19 H30 O2. It has a beta-isomer called epiandrosterone, in which an hydroxyl group occupies a different geometric position.

The ratio of androsterone to epiandrosterone is thought to be important in how masculine behavior is interpreted by others Pheromones are well known in insect behavior. Their role in insect mating, navigation and nest protection has been studied, and active compounds have been isolated. Pheromones are the basis of some insect baits. Their effect on mammal behavior patterns is less well understood.


6-OXO Effect

4-Androstene-3,6,17-trione (4-AT; also marketed as 6-OXO or 4-etioallocholen-3,6,17-trione) is a drug or nutritional supplement that may increase the testosterone-estrogen ratio, but has no proven effect on body composition. Its use can be detected in urine.

4-AT is a potent irreversible aromatase inhibitor that inhibits estrogen biosynthesis by permanently binding and inactivating aromatase in adipose and peripheral tissue.Aromatase is responsible for the conversion of testosterone to estradiol. Blocking aromatase causes the body to decrease in levels of estradiol, which then results in increase of LH and consequently, testosterone. Since testosterone has myotropic activity and estradiol does not, elevated testosterone levels increase muscle mass. However, there appear to be no human or animal studies testing the hypothesis that 4-AT will produce an anabolic effect


What is 6-OXO ?


6-OXO, also known as androstenetrione,4- androstene-3,6,17- trione, is a “suicidal estrogen inhibitor” described and created by Illinois chemist Patrick Arnold. Arnold may be best known for creating “THC,” a formerly undetectable anabolic steroid sold to BALCO Labs and allegedly taken by several Major League Baseball star players.

Marketed as a dietary supplement, 6-OXO functions by binding to estrogen and permanently deactivating it. Arnold notes that this results in increased testosterone levels and decreased estrogen levels. This was confirmed by a study in the Journal of the International Society of Sports Nutrition. The independent researchers found that 6-OXO “significantly increased free testosterone, dihydrotestosterone, and testosterone/estrogen ratios in healthy males.”


Low Estrogen Levels


6-OXO is designed to lower estrogen levels, thereby increasing testosterone levels. While not life- threatening, prolonged low estrogen levels can produce side effects for males. This is why Patrick Arnold suggests on the label that 6-OXO should be not used more than eight weeks.

A study led by Dr. Adrian Dobs, a professor of medicine and oncology at Johns Hopkins School of Medicine, found a link between low estrogen levels and low bone mineral density. Of the 1,220 men who participated, “Men with lower estradiol levels, lower free testosterone levels, and higher circulating SHBG concentrations were more likely to have low BMD,” the study found.

Prolonged low estrogen levels can also result in a decrease in sex drive, increased susceptibility to joint or tendon injuries, fatigue, memory lapses, increase in cholesterol and night sweats.


Benefits of 6-OXO

  • Stops estrogen production
  • Increases testosterone levels



Company Introduction:

(1) High Quality:Wuhan Wang Lianshang Biotechnology Co., Ltd. is a steroids manufacturer with its own lab and factory.
The purity of our product is tested by our quality department before it is shipped to our clients. Mostly steroids are 99% purity and approved by SGS,CTI and ITS.

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