Cloxotestosterone acetate (; brand name Caprosem), also known as testosterone 17β-chloral hemiacetal ''O''-acetate, is a
synthetic,
injected anabolic–androgenic steroid (AAS) and an
androgen ether and ester – specifically, the ''O''-
acetate ester
In chemistry, an ester is a compound derived from an oxoacid (organic or inorganic) in which at least one hydroxyl group () is replaced by an alkoxy group (), as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides a ...
of
cloxotestosterone, the 17β-
trichloro hemiacetal
A hemiacetal or a hemiketal has the general formula R1R2C(OH)OR, where R1 or R2 is hydrogen or an organic substituent. They generally result from the addition of an alcohol to an aldehyde or a ketone, although the latter are sometimes called hemi ...
ether
In organic chemistry, ethers are a class of compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. They have the general formula , where R and R′ represent the alkyl or aryl groups. Ethers can again be ...
of
testosterone
Testosterone is the primary sex hormone and anabolic steroid in males. In humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristi ...
.
It is administered via
intramuscular injection as a 100 mg, 2 mL
aqueous suspension and lasts 4 to 6 weeks with a single administration.
The drug was first marketed in the early 1960s.
See also
*
List of androgen esters
This is a list of androgen esters, including esters (as well as ethers) of natural androgens like testosterone and dihydrotestosterone (DHT) and synthetic anabolic–androgenic steroids (AAS) like nandrolone (19-nortestosterone).
Esters of nat ...
References
Acetate esters
Androgen ethers
Androgens and anabolic steroids
Androstanes
Organochlorides
Prodrugs
Testosterone esters
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