Steroids

Applications (3α)-Allopregnanolone Sulfate is the sulfate conjugate of (3α)-Allopregnanolone (A547100), a metabolite of progesterone and potent positive modulator of GABAA receptors. References El-Etr, M. et al.: Brain Res., 790, 334 (1998); Hauser, C.A.E. et al.: Eur. J. Pharmacol. Mol. Pharmacol. Sec., 289, 249 (1995);

Applications Androstenedione (A637550) analog, an aromatase inhibitor. References Marsh, D.A., et al.: J. Med. Chem., 28, 788 (1985),

Impurity Betamethasone Dipropionate EP Impurity D Applications Betamethasone 21-acetate-17-propionate (Betamethasone Dipropionate EP Impurity D) is a related compound of Betamethasone dipropionate (B327005). References Grootveld, M., et al.: Biochem. Pharmacol., 37, 271 (1988), Chen, B., et al.: Steriods, 74, 30 (2009), Mikami, E., et al.: J. Pharm. Biomed. Anal., 28, 261 (2002),

Applications Clobetasol Propionate Impurity E is an impurity of Clobetasol (C583490), which is a topical corticosteroid. Glucocorticoid; anti-inflammatory. References Olsen, E.A., et al.: J. Am. Acad. Dermatol., 15, 246 (1986),

Applications The major metabolite of Boldenone, an anabolic steroid. References Fotsis, T., et al.: J. Steroid Biochem., 28, 203 (1987), Song, Y., et al.: Arch. Pharm. Res., 23, 599 (2000), Buiarelli, F., et al.: Anal. Chim. Acta, 526, 113 (2004), Poelmans, S., et al.: Food Addit. Contam., 22, 808 (2005),

Applications Clostebol is an anabolic steroid.This is a controlled substance. References Roy, D., et al.: Eur. J. Med. Chem., 42, 1365 (2007), Alvarez-Ginarte, Y., et al.: Bioorg. Med. Chem., 16, 6448 (2008), Srivastava, H., et al.: Med. Chem. Res., 18, 455 (2009),

Mometasone furoate (Sch32088) is a pregnadienediol derivative ANTI-ALLERGIC AGENT and ANTI-INFLAMMATORY AGENT that is used in the management of ASTHMA and

Applications A Cholesterol (C432501) metabolite. Lathosterol (indicating cholesterol synthesis) and Sitosterol (indicating cholesterol absorption) also decreased with deteriorating health. Low Lathosterol, Sitosterol (S497050), and Cholesterol (C432501) predicted mortality additively and independently of each other. References Chyou, P., et al.: Age Ageing, 29, 69 (2000), Schatz, I., et al.: Lancet, 358, 351 (2001), Bjorkman, M., et al.: Eur. J. Endocrinol., 158, 749 (2008),

Applications Tauro-d4-cholic Acid Sodium Salt is a useful isotopically labeled compound of Sodium Taurocholate (S080848)

β-Estradiol is the major estrogen secreted by the premenopausal ovary. It acts as an estrogenic hormone receptor (ER) agonist and activator of PI 3-kinase. Further, it is used in the treatment of infertility in women, prostate cancer and breast cancer. It is also employed as an agent of stimulating female puberty induction, as in the treatment of delayed puberty caused by hypogonadism or Turner's syndrome. In addition to this, it is used as part of the hormone replacement therapy for transgender women. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Stability Light Sensitive Applications 6α-Chloro Testosterone is a derivative of Testosterone, the principal hormone of the testes, produced by the interstitial cells. Major circulating androgen; converted by 5α-reductase in androgen-dependent target tissues to 5α-dehydrotestosterone which is required for normal male sexual differentiation. Also converted by aromatization to Estradiol.Testerone is a controlled substance (anabolic steroid). Androgen.This compound is a contaminant of emerging concern (CECs). References McFarland, K., et al.: Science, 245, 494 (1989), Heckert, L., et al.: Mol. Endocrinol., 12, 1499 (1998), Themmen, A., et al.: Endocr. Rev. 21, 551 (2000), Kumar, R., et al.: Biol. Reprod., 65, 710 (2001),

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Stability Hygroscopic Applications An active agent in the preparation of a pharmaceutical for the treatment of asthma or other respiratory diseases.

Applications A labelled metabolite of Pregnenolone (P712200). References Kramer, R., et al.: J. Steroid Biochemi., 18, 715 (1983), Hiwatashi, A., et al.: J. Biochem., 98, 619 (1985), Eiichi, T., et al.: J. Pharmacol. Sci., 95, 140 (2004),

Applications Ulipristal Acetate-d3, is the labeled analogue of Ulipristal Acetate (U700812), a selective progesterone receptor modulator. Ulipristal acetate is used during pregnancy. References Gronemeijer, H. et al.: J. Steroid Biochem., 40, 271 (1991); Spitz, I. et al.: Contraception, 48, 403 (1993); Conneely, O. et al.: Steroids, 68, 771 (2003); Chwalisz, K. et al.: Endocr. Rev., 26, 423 (2005);

Impurity Fluocinolone Acetonide EP Impurity I Applications 14,15-Dehydro Fluocinolone Acetonide is an impurity of Fluocinolone Acetonide (F455800); a glucocorticoid and anti-inflammatory agent. References Sammul, et al.: J. Assoc. Off. Agric. Chem., 47, 952 (1964); Emerson, M.V., et al.: BioDrugs, 21, 245 (2007)

Desacetylcinobufagin (Deacetylcinobufagin) , a natural product, shows potent activities against Hela and A375 cells in vitro.

Sodium taurocholate is a bile acid having detergent capabilities; natural surfactant. It is used for solubilization of protein. In the preparation of digestive enzymes, it is used as an emulsifier. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications Betamethasone 6α-Bromo 17-Valerate is an impurity of Betamethasone (B327000), which is a glucocorticoid used as an anti-inflammatory agent. References Ferrante, M.G., et al.: Anal. Profiles Drug Subs., 6, 43 (1977), Li, A., et al.: Chem. Biol. Interact., 142, 7 (2002), Cruz-Monteagudo, M., et al.: Eur. J. Med. Chem., 40, 1030 (2005), Rothfuss, A., et al.: Chem. Res. Toxicol., 19, 1313 (2006),

5a-Pregnane-3,20-dione is a biologically active 5-alpha-reduced metabolite of plasma progesterone

Applications 4-Hydroxy Estradiol 1-N3-Adenine is an estrogen metabolite formed with DNA which can lead to the mutations that initiate breast, prostate, and other types of cancer. The N3Ade depurinating adducts could serve as biomarkers to predict the risk of breast cancer. References Chakravarti, D., et al.: Mutat. Res., 456, 17 (2000), Liehr, J., et al.: Endocr. Rev., 21, 4054 (2000), Chakravarti, D., et al.: Oncogene, 20, 7945 (2001), Cavalieri, E., et al.: Chem. Res. Toxicol., 14, 1041 (2002),

Stability Isomerizes rapidly in Benzene, Chloroform, and Ether.Keep Shielded from light. Applications A synthetic, nonsteroidal estrogen.Recomended solvents are DMSO, DMF and ethanol, even in these solvents do not store in solution for any prolonged period of time. References White, W. A. et. al.: J. Agric. Food Chem. 19(2), 388-390 (1971).

Impurity Fulvestrant Impurity E; Applications Fulvestrant (F862500) impurity E.

5α-Cholestan-3β-ol (NSC 18188) is a cholesterol derivative found in human feces, gallstones, eggs, and other biological matter.

Applications A derivative of dehydrochloromethyltestosterone. Metabolite of anabolic steroids. References Rendic, S., et al.: J. Chromatogr. 735, 73 (1999)

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Applications Androgen. It has been used as an androgenic agent. Controlled substance (anabolic steroid). References Bichet, N., et al.: Toxicol. Appl. Pharmacol., 106, 509 (1990), Gustafson, D., et al.: Toxicol. Sci., 53, 245 (2000), Copple, B., et al.: Toxicol. Sci., 77, 172 (2004), Takashima, K., et al.: Life Sci., 78, 2787 (2006),

Applications Labelled Normethandrone. Androgen. Controlled substance (anabolic steroid). References Matias, P., et al.: J. Biol. Chem., 275, 26164 (2000), Fang, H., et al.: Chem. Res. Toxicol., 16, 1338 (2003), Raudrant, D., et al.: Drugs 63, 463 (2003), Death, A., et al.: Steroids, 70, 946 (2005),