Testosterone formula

Chemical Name 17/3-(3-Cyclopentyl-1-oxopropoxy)androst-4-en-3-one Common Name Depo-testosterone Structural Formula ... 

The male sex hormone testosterone contains C, H, and O and has a mass of 288.2089 amu as determined by high-resolution mass spectrometry. What is the likely molecular formula of testosterone ... 

The chemical formula of a compound represents its composition in terms of chemical symbols. Subscripts show the numbers of atoms of each element present in the smallest unit that is representative of the compound. For molecular compounds, it is common to give the molecular formula, a chemical formula that shows how many atoms of each type of element are present in a single molecule of the compound. For instance, the molecular formula for water is H20 each molecule contains one O atom and two H atoms. The molecular formula for estrone, a female sex hormone, is Clgl-I2202, showing that a single molecule of estrone consists of 18 C atoms, 22 FI atoms, and 2 O atoms. A molecule of a male sex hormone, testosterone, differs by only a few atoms its molecular formula is (lyH2802. Think of the consequences of that tiny difference ... 

In addition, a recent primate study reported that dietary consumption of soy infant formula reduced the neonatal testosterone surge and increased Leydig cell numbers in the testes of male marmosets. However, the longterm effects on the fertility of the animals has not been determined, and the health implications of these findings for humans are unclear (Sharpe et al,... 

SHARPE R M, MARTIN B, MORRIS K, GREIG I, MCKINNELL, MCNEILLY A S, WALKER M (2002) Infant feeding with soy formula mflk effects on the testis and on blood testosterone levels in marmoset monkeys during the period of neonatal testicular activity. Human Reproduction. 17 1692-1703. 

In the case of analytes with identical elemental formulas ( true isobars ) as positional or geometrical isomers (e.g. 11-hydroxycortisol and 21-hydroxycortisol or testosterone and epi-testosterone)—a discrimination of analyte and interfering compound is not possible with any mass analyzer—even if enabling highest mass resolution. Potentially, the disintegration pattern of isomers may be different, allowing analytical discrimination but in most cases chromatographic baseline separation of analyte and isomer prior to their MS/MS detection is required for unequivocal quantitative measurement. 

Collection of the GC effluent and subsequent MS analysis allowed assignment of a possible molecular formula as Ci9H280. Since boar taint can be eliminated by castration of male pigs, attention was focused on the testosterone and androsterone family of compounds as possible candidates. When the crude volatiles were treated with 2,4-dinitrophenylhydrazine, the boar taint odor was completely removed, implicating a ketone functionality for the lone oxygen atom. Anecdotal information implicated several androstene derivatives, including 47, which was described as having an intense, urine-like odor. 143 An authentic sample of 47 was prepared, and comparison of the GC and MS properties allowed the definitive structural identification of the boar taint compound. 

The fight against aging should take into account not only the damage caused by the various sources of cell oxidation but also the fall in hormone levels. For menopausal or postmenopausal women, a standard formula is testosterone propionate 100 mg, estrone 5 mg, estradiol benzoate 5 mg, and water in oil excipient ad 100 g. 

Examine the structural formulas of testosterone (a male sex hormone) and progesterone (a female sex hormone). What are the similarities in structure between the two What are the differences ... 

Estradiol is made by the cells of a follicle in the ovary containing an ovum that is ready to be expelled. In the male the interstitial cells produce testosterone, one of the male sex hormones. It is converted into (indrosterone. Their formulas are... 

Eiach molecule contains two O atoms. What are (a) the molecular weight and (b) the molecular formula for testosterone ... 

In the animal organism, cholesterol is the starting point for the synthesis of other steroids, such as sex hormones and bile acids. In fact, GC-MS analyses and radio immunoassays show that among the sex hormones, progesterone (I in Formula 3.102) appears most often in animal food. It is enriched in the fat phase, leading to relatively high concentrations in butter (Table 3.50). Traces of this steroid also occur in plant foods. Testosterone (II in Formula 3.102), 3,17-estradiol (III) and 17-estrone (IV) are other sex hormones which have been identified as... 

FIGURE 12.4 A simple molecule that acts as a plant hormone to promote maturation processes (ethylene) and a common animal hormone, testosterone, the male sex hormone. See Chapter 20, Section 20.3, for the meaning of line formulas, such as those shown for testosterone. 

Figure 13.20 Chemical formulae of 17P-oestradiol, testosterone, progesterone, trenbolone acetate and melengestrol acetate.

Compared to the greatly differing physiological effects, the chemical differences at first appear minor. But too often one overlooks the fact that the side chains of amino acids are after all quite different. And if one were to compare the complete structural formulas of the peptides, then the differences would indeed appear much greater than they are, for example, among progesterone, corticosterone, and testosterone. 

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