Mestanolone steroid

Steroid isolation , depending on context, is the isolation of chemical matter required for chemical structure elucidation, derivitzation or degradation chemistry, biological testing, and other research needs (generally milligrams to grams, but often more [37] or the isolation of "analytical quantities" of the substance of interest (where the focus is on identifying and quantifying the substance (for example, in biological tissue or fluid). The amount isolated depends on the analytical method, but is generally less than one microgram. [38] [ page needed ] The methods of isolation to achieve the two scales of product are distinct, but include extraction , precipitation, adsorption , chromatography , and crystallization . In both cases, the isolated substance is purified to chemical homogeneity; combined separation and analytical methods, such as LC-MS , are chosen to be "orthogonal"—achieving their separations based on distinct modes of interaction between substance and isolating matrix—to detect a single species in the pure sample. Structure determination refers to the methods to determine the chemical structure of an isolated pure steroid, using an evolving array of chemical and physical methods which have included NMR and small-molecule crystallography . [2] :10–19 Methods of analysis overlap both of the above areas, emphasizing analytical methods to determining if a steroid is present in a mixture and determining its quantity. [38]

· Cloxotestosterone (CAS RN: 53608-96-1)
· Ethisterone (Ethynyl testosterone, CAS RN: 434-03-7)
· Mestanolone (CAS RN: 521-11-9)
· 17alpha-Methyltestosterone (CAS RN: 58-18-4)
· Norethindrone (CAS RN: 68-22-4)
· Normethisterone (CAS RN: 514-61-4)
· Oxymetholone (CAS RN: 434-07-1)
· Silandrone (Testosterone trimethylsilyl ether, CAS RN: 5055-42-5)
· Testosterone Acetate (CAS RN: 1045-69-8)
· Testosterone Phenylpropionate (CAS RN: 1255-49-8)
· Testosterone Benzoate (CAS RN: 2088-71-3)
· Testosterone heptanoate (CAS RN: 315-37-7)
· Testosterone phenylacetate (CAS RN: 5704-03-0)
· Testosterone propionate (CAS RN: 57-85-2)
· Testosterone cypionate (CAS RN: 58-20-8)
· Testosterone ketolaurate (CAS RN: 5874-98-6)
· Testosterone Undecanoate
· Testosterone Glucuronide
· Testosterone Hemisuccinate
Alkylated testosterone at 17-alpha position such as methyltestosterone show more pharmacologic activity than testosterone itself. Methyltestosterone, a synthetic androgen, is used to treat testosterone deficiency in males. For females it is used in the relief of postpartum breast pain and swelling after pregnancy. It is used to treat the symptom of menopause and in the palliation of certain inoperable breast cancers. Methyltestosterone is a white to creamy white crystalline powder; melting point 162 - 167 C; practically insoluble in water; soluble in various organic solvents; administered orally or sublingually. The chemical designation is 17beta-hydroxy-17alpha-methyl-4-androsten-3-one.

The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ), [53] nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone). [1] Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone . [1] Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine. [54] Boldenone undecylenate and trenbolone acetate are used in veterinary medicine . [1]

Drugs can be added and removed from this list by WADA annually, although not all of the banned substances are explicitly named. Caroline Hatton, PhD , a sports anti-doping science consultant, told in a Mar. 12, 2010 email that "A key concept in prohibited lists is that they avoid being finite. Instead of listing all banned drugs one by one, they list entire drug classes and name drugs merely as examples. This is to keep users who took designer drugs from claiming that they didn't break the rules because the drugs they took weren't listed."

Mestanolone steroid

mestanolone steroid

Drugs can be added and removed from this list by WADA annually, although not all of the banned substances are explicitly named. Caroline Hatton, PhD , a sports anti-doping science consultant, told in a Mar. 12, 2010 email that "A key concept in prohibited lists is that they avoid being finite. Instead of listing all banned drugs one by one, they list entire drug classes and name drugs merely as examples. This is to keep users who took designer drugs from claiming that they didn't break the rules because the drugs they took weren't listed."

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