Steroids and Derivatives

Applications di(4-Hydroxy Atorvastatin-d5) Calcium Salt is a labeled metabolite of Atorvastatin Calcium Salt (A791750), a selective, competitive HMG-CoA reductase inhibitor. Atorvastatin is the only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.
References Kearney, A.S., et al.: Pharm. Res., 10, 1461 (1993); Heinonen, T.M., et al.: Clin. Ther., 18, 853 (1996); Whitfield, L.R., et al.: Eur. J. Drug Metab. Pharmacokinet., 25, 97 (2000)

Applications Steroid hormone produced by the corpus luteum. Induces maturation and secretory activity of the uterine endothelium; suppresses ovulation. Progesterone is implicated in the etiology of breast cancer.This compound is a contaminant of emerging concern (CECs).
References Anderson, E., et al.: Breast Cancer Res., 4, 197 (2002), Lanari, C., et al.: Breast Cancer Res., 4, 240 (2002), Albrecht, E.D., et al.: Front. Biosci., 8, 416 (2003), Qiu, M., et al.: J. Steroid Biochem. Mol. Biol., 85, 147 (2003),

Applications A synthetic steroid with weak estrogenic, androgenic and progestogenic activity. A pharamceutical used in the treatment of menopausal syndrome.
References de Visser, J., et al.: Arzneim.-Forsch., 34, 1010 (1984), Geusens, P., et al.: Maturitas Suppl, 1, 1 (1987)

Impurity Calcipotriol EP Impurity D
Applications (24R)-Calcipotriene (Calcipotriol EP Impurity D) is a synthetic analogs of vitamin D that was studied for its potential antitumor effects. Studies has shown the combined treatment with vitamin D analog (24R)-Calcipotriene was more effective than the treatment with cytostatics applied alone. (24R)-Calcipotriene is also the 24-R epimer of Calcipotriene (C144200).
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Wietrzyk, J., et al.: Anticancer. Res., 27, 3387 (2007); Tien, X.Y., et al.: Am. J. Physiol., 265, 143 (1993); Wietrzyk, J., et al.: Anti-Cancer. Drugs., 18, 447 (2007);

Stability Hygroscopic
Applications A labelled metabolite of Estradiol (E888000).
References Agasan, A., et al.: J. Immunol. Methods., 177, 251 (1994), Stone, R., et al.: Science, 265, 308 (1994), Tacey, R., et al.: J. Pharm. Biomed. Anal., 2, 1303 (1994),

Applications Prednisolone Tebutate is an anaesthetic corticosteroid.
References Lewis, A. et al.: Agents and Actions, 10, 258 (1980); Myers, S. et al.: Arthris. Rheum., 28, 1275 (1985);

Applications Glucocorticoid; anti-inflammatory.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Sammul, et al.: J. Assoc. Off. Agric. Chem., 47, 952 (1964), Brunmair, B., et al.: J. Pharmacol. Exp. Therap., 311, 109 (2004), Emerson, M.V., et al.: BioDrugs, 21, 245 (2007),

Applications Gestodene is an orally active gestogen with a progesterone-like profile of activity. Gestodene is used in combination with estrogen as an oral contraceptive.
References Duesterberg, B., et al.: Contraception, 24, 673 (1981), Duesterberg, B., et al.: Seroids, 43, 43 (1984), Losert, W., et al.: Arzneim.-Forsch., 35, 459 (1985),

Applications Cardiotonic; diuretic.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Sreenivasan, Y., et al.: Biochem. Pharmacol., 66, 2223 (2003), Ni, D., et al.: J. Exp. Ther. Oncol., 2, 278 (2002), Langford, S.D., Toxicology, 109,1 (1996),

Applications 4-Hydroxytestosterone is an anabolic steroid and does not have any therapeutic indication. 4-Hydroxytestosterone is metabolite of the aromatase inhibitor Formestane (F692250). 4-Hydroxytestosterone concentration in the urine can be used as a biomarker for steroid misuse.Controlled Substance.
References Kohler, M. et al.: Steroids, 72, 278 (2007); Brodie, A.M. et al.: J. Steroid. Biochem., 14, 693 (1981); Van Renterghem, P. et al.: Steroids, 75, 154 (2010);

Applications A metabolite of Tibolone. A synthetic steroid with weak estrogenic, androgenic and progestogenic activity. A pharamceutical used in the treatment of menopausal syndrome.
References Belman, S., et al.: Cancer Res., 32, 450 (1972), Shirahashi, H., et al.: Chem. Pharm. Bull., 41, 1664 (1993), Hoyte, R., et al.: Steroids, 58, 13 (1993), Sandker, G., et al.: Xenobiotica, 24, 143 (1994), Colombo, D., et al.: Eur. J. Med. Chem., 40, 69 (2005),

Applications Betamethasone Acid is a derivative of Betamethasone (B327000), a gluccocorticoid 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),

Applications Labelled Cortisol (H714615). Cortisol, or Hydrocortisone, is a steroid hormone, more specifically a glucocorticoid, produced by the zona fasciculata of the adrenal gland. Cortisol is released in response to stress and a low level of blood glucocorticoids. Its primary functions are to increase blood sugar through gluconeogenesis; suppress the immune system; and aid in fat, protein and carbohydrate metabolism.
References Hechter, O., et al.: Arch. Biochem. Biophys., 25, 457 (1950), Colingsworth, D.R., et al.: J. Biol. Chem., 203, 807 (1953), Florey, K., et al.: Anal. Profiles Drug Subs., 12, 277 (1983),

Applications Labelled Limaprost (L461500). Limaprost is an analog of Prostaglandin E1 with structural modifications intended to give it a prolonged half-life and greater potency. Limaprost is used as an antianginal.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Tsuboi, T., et al.: Arch. Int. Pharmacodyn., 247, 89 (1980), Adaikan, P.G., et al.: Prostaglandins Med., 6, 449 (1981), Kottegoda, S.R., et al.: Prostaglandins Leukotrienes Med., 8, 343 (1982), Ishizaki, T., et al.: Chest, 85, 382 (1984),

Stability Light Sensitive
Applications Fluocinonide 22 Methyl Homologue is a steriod and a derivative compound of Fluocinolone Acetonide (F455800) with anti-inflammatory activity.
References Sammul, et al.: J. Assoc. Off. Agric. Chem., 47, 952 (1964), Emerson, M.V., et al.: BioDrugs, 21, 245 (2007),

Stability Hygroscopic
Applications α-Epoxyabiraterone Acetate is an impurity of Abiraterone (A108490), a steroidal cytochrome P 450 17α-hydroxylase-17,20-lyase inhibitor (CYP17), is currently undergoing phase II clinical trials as a potential drug for the treatment of androgen-dependent prostate cancer.
References Denis, L., et al.: Cancer, 72, 3888 (1993); Potter, G.A., et al.: J. Med. Chem., 38, 2463 (1995); Denmeade, S., et al.: Nat. Rev., 2, 389(2002); Scher, H., et al.: J. Clin. Oncol., 23, 8253 (2005)

Applications A metabolite of Atorvastatin, a selective, competitive HMG-CoA reductase inhibitor. Atorvastatin is the only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.
References Smith, S., et al.: Am. J. Cardiol., 80, 10H (1997), Jacobsen, W., et al.: Drug Metab. Dispos., 28, 1369 (2000), Istvan, E., et al.: Science, 292, 1160 (2001), Tabernero, L., et al.: J. Biol. Chem., 278, 19933 (2003), Bratton, L., et al.: Bioorg. Med. Chem., 15, 5576 (2007),

Applications Norgestrel (N689500) impurity.

Applications 5α-Androstanedione is a metabolite of Androstendione (A637550). 5α-Androstanedione is an important intermediate in the conversion of Androstenedione to Androstanolone (A637540).
References Milewich, L., et al.: J. Steroid Chem., 16, 81 (1982); Stanczyk, F. Z., et al.: J. Steroid Biochem. Mol. Biol., 37, 129 (990);

Applications Eplerenone 7-Carboxylic Acid is an impurity of Eplerenone (E588775). Eplerenone is a selective aldosterone receptor antagonist (SARA), structurally similar to Spiranolactone. Eplerenone is used alone or in combination with other medications to treat high blood pressure. Eplerenone is in a class of medications called mineralocorticoid receptor antagonists. It works by blocking the action of aldosterone, a natural substance in the body that raises blood pressure.
References de Gasparo, M., et al.: J. Pharmacol. Exp. Ther., 240, 650 (1987), Delyani, J.A., et al.: Cardiovasc. Drug Rev., 19, 185 (2001), Burgess, E., et al.: Expert. Opin. Pharmacother., 5, 2573 (2004), Ravis, W.R., et al.: J. Clin. Pharmacol., 45, 810 (2005),

Applications Isotope labelled Cortisol (H714615) a topical corticosteroid, more specifically a glucocorticoid, produced by the zona fasciculata of the adrenal gland . Cortisol is released in response to stress and a low level of blood glucocorticoids. Its primary functions are to increase blood sugar through gluconeogenesis; suppress the immune system; and aid in fat, protein and carbohydrate metabolism.
References Vigore, L., et al.: Cancer Biol Ther.. 15. :699 (2014); Puurunen, J. et al.: J. Clin. Endocrinol. Metab., 94, 1973 (2009);

Applications Topical corticosteroid. Glucocorticoid; anti-inflammatory.
References Olsen, E.A., et al.: J. Am. Acad. Dermatol., 15, 246 (1986),

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);

Impurity Betamethasone Acetate EP Impurity D
Applications 9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate is an intermediate in the production 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)

Applications Pregnenolone-d4, is the labeled analogue of the Pregnenolone (P712200), which is a steroid hormone involved in the steroidogenesis of progesterone, mineralocorticoids, glucocorticoids, androgens, and estrogens.
References Bjondahl, K., et al.: Med. Biol., 54, 454 (1976), Geick, A., et al.: J. Biol. Chem., 276, 14581 (2001), Johnson, D., et al.: Toxicol. Sci., 66, 16 (2002), Abe, C., et al.: Lipids, 42, 637 (2007),

Applications Testosterone (T155000) derivative. It is a potent androgen with anabolic properties. Since the begining of the year 2005, the use of steroid precursors (prohormones) is illegal in the United States. Controlled substance.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Liao, S., et al.: J. Biol. Chem., 248, 6154 (1973), Saartok, T., et al.: Endocrinology, 114, 2100 (1984), Sugawara, T., et al.: J. Biol. Chem., 278, 42487 (2003),

Applications The 17β-metabolite of Equilin (E592800).
References Enmark, E., et al.: J. Clin. Endocrinol. Metab., 82, 4258 (1997), Wang, Z., et al.: J. Med. Chem., 43, 2419 (2000), Jiang, X., et al.: Steroids, 71, 334 (2006),

Applications Prednisolone 21-β-D-Glucuronide Sodium Salt is a metabolite of Prednisolone (P703740).
References Hutzler, J., ET AL.: Drug Metab. Dispos., 30, 355 (2002), Sugiyama, D., et al.: J. Biol. Chem., 278, 43489 (2003), Hagenbuch, B., et al.: Xenobiotica, 38, 778 (2008),

Applications Dexamethasone 9,11-Epoxide-d5, is the labeled analogue of the unlabeled (D298795 ), a Dexamethasone intermediate.
References Isogai, M., et al.: J. Steroid Biochem. Mol. Biol., 44, 141 (1993),

Applications 11-Dehydrocorticosterone is a precursor to corticosterone (C695700), converted by 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) which plays a role in glucocorticoid-induced insulin resistance.
References Morgan, S. et al.: Diabetes, 58, 2506 (2009);

Applications Tetrahydrocorticosterone is a urinary steroid metabolite that decreases in postmenopausal women with osteoporosis. Tetrahydrocorticosterone is a potential biomarker of pathol. adrenal function.
References Poor, V., et. al.: Chromatographia, 60, S165 (2004); Kotlowska, A., et. al.: J. Chromatogr. B, 879, 359 (2011)

Applications Prednisolone 17-Acetate is an intermediate in the preparation of anti-inflammatory drugs.
References Yoon, Kyoung-Jin, et al.: Steroids, 60(7), 445-51 (1995);Uszycka-Horawa, Teresa, et al.: Pol., PL 161012 B1 19930531 (1993)

Applications A glucocorticoid anti-inflammatory agent. Regulates T cell survival, growth, and differentiation. Inhibits the induction of nitric oxide synthase.
References Wershil, B.K., et al.: Int. Arch. Allergy Immunol., 107, 323 (1995), Riccardi, C., et al.: Cell Death Diff., 6, 1182 (1999), Llanos, S.L. and Roldan, A.: Bio Cell, 23, 29 (1999)

Impurity Norethindrone EP Impurity G
Applications Norethindrone (N676000) epimer. Norethindrone and acetate is used in combination with estrogen as contraceptive (oral). Norethindrone EP Impurity G.
References Angel, P., et al.: Biochim. Biophys. Acta., 1072, 129 (1991), Chenu, C., et al.: J. Cell Biol., 127, 1149 (1994), Schmidt, M., et al.: J. Endocrinol., 158, 401 (1998),

Impurity Budesonide EP Impurity E
Applications 14,15-Dehydro Budesonide (Budesonide EP Impurity E) is a Budesonide (B689490) impurity.
References Aherne, G., et al.: J. Steroid Biochem., 17, 559 (1982), Assi, K., et al.: J. Pharm. Biomed. Anal., 41, 325 (2006),

Applications Mestranol (M258755) derivative. It is used as contraceptive.
References Cullen, L.F., et al.: J. Pharma. Sci., 57, 1857 (1968),

Applications A metabolite of Cholesterol. It is formed from Cholesterol by the drug-metabolizing enzyme cytochrome P 450 3A4. A potential ligand for the nuclear receptor LXR and also a new endogenous CYP3A marker.
References Breuer, O., et al.: J. Lipid Res., 36, 2275 (1995), Pikuleva, I., et al.: J. Biol. Chem., 273, 18153 (1998), Chawla, A., et al.: Science, 294, 1866 (2001), Bodin, K., et al.: J. Biol. Chem., 276, 38685 (2001),

Impurity Budesonide EP Impurity C, Budesonide Impurity C,
Applications 16α,17-[(1RS)-butylidenebis(oxy)]-11β-hydroxy-17-(hydroxymethyl)-D-homoandrosta-1,4-diene-3,17a-dione (Budesonide EP Impurity C) is an impurity of Budesonide (B689490), an antiinflammatory agent.
References Ferraboschi, P. et al.: J. Pharm. Biomed. Anal., 47, 636 (2008);

Stability Hygroscopic
Applications Tixocortol is an anti-inflammatory agent. Tixocortol is used in fluorescent chemoaffinity labeling.
References Torossian, D.R., et al.: Arzneim.-Forsch., 31, 453 (1981),

Applications A potent inhibitor of estrone sulfatase. Inhibits estrone sulfatase >99% at 0.1uM in intact MCF-7 cells, IC50=65pM.
References Woo, L.W., et al.: J. Med. Chem., 41, 1068 (1998)

Stability Hygroscopic, Unstable in Solution
Applications (αR,​1S,​3S,​4R)​-α,​4-​Dimethyl-​2-​oxo-​3-​(3-​oxobutyl)​-​cyclohexaneacetic Acid is an impurity of Artemisin (A777500), an active antimalarial constituent of the tradional Chinese medicinal herb Artemisia annua L., Compositae, which has been known for almost 2000 years as Qinghao. Antimalarial.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Klayman, D.L., et al.: Science, 228, 1049 (1985), Price, R.N., et al.: Expert Opin. Invest. Drugs, 9, 1815 (2000), Meshnick, S.R., et al.: Int. J., Parasitol., 32, 1655 (2002),

Applications Isotope labelled 17β-Estradiol (E888000), which is the major estrogen (1) secreted by the premenopausal ovary (2).Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
References 1. Salole, E. et al.: Anal. Profiles Drug Subs. 1986 15, 23 283-3182. Lievertz, R. et al.: Am. J. Obstet. Gynecol. 1987 May;156(5):1289-93.

Impurity Clobetasol Propionate EP Impurity D
Applications 21-Chloro-9-fluoro-11β,17-dihydroxy-16β-methylpregn-4-ene-3,20-dione 17-Propionate (Clobetasol Propionate EP Impurity D) is an impurity of Clobetasol 17-Propionate (C583500), an topical corticosteroid with anti-inflammatory properties.
References Olsen, E.A., et al.: J. Am. Acad. Dermatol., 15, 246 (1986),

Applications A corticosteroid (derivative of prednisolone), approved for the treatment of post-operative ocular inflammation.
References Kapp, A., et al.: J. Allergy and Clin. Immunol., 110, 277 (2002), Yasueda, S., et al.: J. Pharm. Biomed. Anal., 30, 1735 (2003), Yamaguchi, M., et al.: Int. J. Pharm., 301, 121 (2005),

Applications Isotope labelled Estrone (E889050), which is a metabolite of 17β-Estradiol (E888000). During the metabolism, it is in rapid equilibrium with Estriol (E888960) and 17β-Estradiol (E888000) (1). Causes the feminization of male fish at human and animal waste sites (2).Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
References 1. Both, D. et al.: Anal. Prof. Drug Subst. 1983 12 pp135-1892. Goodman-Gruen, D. et al.: J. Clin. Endocrinol. Metab. 1996 Aug;81(8):2999-3003.

Stability Hygroscopic
Applications A metabolite of Exemestane (E957000).
References Cavalcanti, G. et al.: Steroids 76, 1010 (2011)

Stability Hygroscopic
Applications Glucocorticoid.
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),

Stability Hygroscopic
Applications 4-Hydroxyestradiol 4-O-β-D-Glucuronide Sodium Salt, is a glucuronide derivative of 4-Hydroxy-17β-estradiol (H941895); a metabolite of Estradiol (E888000) which is the major estrogen secreted by the premenopausal ovary.
References Bucala, R., et al.: J. Clin. Endocrinol. Metab., 60, 841 (1985); Telang, N., et al.: Anticancer Res., et al.: 11, 1021 (1991); Seeger, H., et al.: Med. Sci. Res., 26, 481 (1998); Bolton, J., et al.: Chem. Res. Toxicol., 13, 135 (2000); Salole, E.G., et al.: Anal. Profiles Drug Subs., 15, 283 (1986); Lievertz, R.W., et al.: Am. J. Obstet. Gynecol., 156, 1289 (1987)

Applications An antitumor drug. An aromatase inhibitor.
References Brodie, A.M. and Njar, V.C.: Steroids, 65, 171 (2000), Lonning, P.E., et al.: J. Steroid Biochem, 77, 39 (2001)

Applications The active metabolite of the widely used non-steroidal antagonist Flutamide (F598850). Shown to be an antianhydrogen.
References Katchen, B., et al.: J. Clin. Endocrinol. Metab., 41, 373 (1975), Fau, D., et al.: J. Pharmacol. Exp. Ther., 269, 954 (1994), Anzenbacher, P., et al.: Drug Metab. Dispos., 30, 100 (2002), Norlin, M., et al.: J. Lipid Res., 43, 721 (2002),

Applications Isotope labelled 17β-Estradiol (E888000), which is the major estrogen (1) secreted by the premenopausal ovary (2).Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
References 1. Salole, E. et al.: Anal. Profiles Drug Subs. 1986 15, 23 283-3182. Lievertz, R. et al.: Am. J. Obstet. Gynecol. 1987 May;156(5):1289-93.

Applications A labelled orticosteroid prodrug for the treatment of eye disorders.
References Benameur, H., et al.: J. Pharm. Pharmacol., 47, 812 (1995), Tauchi, Y., et al.: Biol. Pharm. Bull., 24, 925 (2001), Chono, S., et al.: J. Drug Targeting, 13, 407 (2005),

Applications 17α-Hydroxy-5α-androstan-3-one is a metabolite of epi-testosterone (T155005). It functions similar to other testosterone analogs, maintaining cell conformation in epithelial cells.
References Sinowatz, F. et al.: J. Endocrinol., 73, 53 (1977);

Applications A glucocorticoid microemulsion nasal preparation allergy inhibitor rhinitis.
References Fukuoka, E., et al.: Chem. Pharm. Bull., 35, 2943 (1987), Schmitt, E., et al.: J. Pharm. Sci., 88, 291 (1999), Hancock, B., et al.: Pharm. Res., 17, 397 (2000), Hogan, S., et al.: Pharm. Res., 18, 112 (2001),

Impurity Norethindrone Acetate EP Impurity B
Applications Δ-5(10)-Norethindrone Acetate (Norethindrone Acetate EP Impurity B) is a Norethindrone Acetate (N675990) impurity. Used in studies of progesterone-binding properties of purified uteroglobin-like protein.
References Beato, M. et al.: J. Reprod. Fert., 53, 305 (1978); Schroff, A. P., et al.: Anal. Profiles Drug Subs., 4, 268 (1975); Singh, H., et al.: Am. J. Obstet. Gynecol., 135, 409 (1979);

Impurity Betamethasone EP Impurity D
Applications Betamethasone 21-O-Ethyl Carbonate (Betamethasone EP Impurity D) is a derivative of Betamethasone (B327000); a glucocorticoid used as an anti-inflammatory agent.4
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); Xiong, Y., et al.: J. Pharmaceut. Biomed., 49, 646 (2009)

Applications A corticosteroid prodrug for the treatment of eye disorders.
References Benameur, H., et al.: J. Pharm. Pharmacol., 47, 812 (1995), Tauchi, Y., et al.: Biol. Pharm. Bull., 24, 925 (2001), Chono, S., et al.: J. Drug Targeting, 13, 407 (2005),

(1β,2β,6β-7α)-17-(Acetyloxy)-6-chloro-1,2-dihydro-7-hydroxy
-3'H-cyclopropa[1,2]pregna-1,4-diene-3,20-dione; 6β-Chloro
-1β,2β-dihydro-7α,17-dihydroxy-3'Hcyclopropa[1,2]pregna-1,4-diene-3,20-dione 17-Acetate;
Cyproterone Acetate EP Impurity G

Applications Prednival was used in the study of inflammation-inhibiting activity of steroids.
References Bodor, N., et al.: J. Med. Chem., 26, 318 (1983); Stouch, T., et al.: J. Med. Chem., 29, 2125 (2986);

Applications 7α-Hydroxy-4-cholesten-3-one is a metabolite of Cholesterol (C432501).
References Connor, W., et al.: J, Clin. Invest., 48, 1363 (1969), Nestel, P., et al.: Metabolism, 24, 189 (1975), Ellegard, L., et al.: Eur. J. Clin. Nutr., 45, 451 (1991), Pedersen, A., et al.: J. Lipid Res., 41, 1901 (2000),

Applications Testosterone and epitestosterone are endogenous steroids that differ in the configuration of the hydroxyl-bearing carbon at C-17. Testosterone is the predominant male sex hormone, whereas the role of epitestosterone is largely unclear. In humans, both androgens are excreted mainly as glucuronide conjugates.
References Wudy, S., et al.: Steroids, 66, 759 (2001), Kootstra, P., et al.: Anal. Chim. Acta., 586, 82 (2007), Sten, T., et al.: Drug Metab. Dispos., 37, 417 (2009),

Applications 2-Methoxyestrone is a endogenous estrogen metabolite. 2-Methoxyestrone detection can be used as a breast cancer biomarker and help assess the risk-factors for development of breast cancer.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Franke, A.A. et al.: Ana;. Bioanal. Chem., 401, 1319 (2011); Farlow, D.W. et al.: J. Chrom B Anal. Technol. Biomed Life Sci., 877, 1327 (2009);

Applications The labelled analogue of a metabolite of Testosterone (T155000). It is a urinary metabolite of Androstenedione (A637550) in patients with Addison's disease and also used as a marker in blood plasma for detection of prostate cancer.
References Lokhov, P.G. et al.: Metabolomics, 6, 156 (2010); Bonnaire, Y. et al.: J. Anal. Toxicol., 19, 175 (1995); Tamm, J. et al.: Steroids, 8, 659 (1966);

Impurity Prednisolone EP Impurity J
Applications 11-Deoxy Prednisolone (Prednisolone EP Impurity J) is a Prednisolone (P703740) derivative as a corticosteroid.
References Kobayashi, Y., et al.: Biol. Pharm. Bull., 16, 1175 (1993), Ogata, M., et al.: J. Pharm. Sci., 87, 91 (1998), Hou, S., et al.: J. Pharm. Biomed. Anal., 24, 371 (2001),

Stability Hygroscopic
Applications 5β-Dihydrocortisol-d6 is an isotope labelled analog of 5β-Dihydrocortisol (D448595). 5β-Dihydrocortisol, is a derivative of Cortisol (H714615), which is a steroid hormone, more specifically a glucocorticoid, produced by the zona fasciculata of the adrenal gland.
References Vigore, L., et al.: Cancer Ther., 6, 699 (2008), Puurunen, J., et al.: J. Clin. Endocrinol. Metab., 94, 1973 (2009), Lemos, D., et al.: J. Endocrinol., 201, 275 (2009), Chen, S., et al.: Am. J. Physiol., 296 (2009),

Applications Betamethasone 17-Valerate is a corticosteroid with anti-inflammatory properties. Topical application of Betamethasone 17-Valerate has been shown to inhibit heat-induced vasodilatation in man.
References Banfi, S. et al.: Curr. Ther. Res., 19, 126 (1976); Ahluwalia, A. et al.: Br. J. Dermatol., 128, 45 (1993);

Applications Testosterone Undecylenate is an ester metabolite of Testosterone (T155000), which is the main hormone of the testes, produced by the interstitial cells. It is a major circulating androgen; converted by 5α-reductase in androgen-dependent target tissues to 5α-dehydrotestosterone that is required for normal male sexual differentiation. Also converted by aromatization to Estradiol.
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);

Applications Dienestrol is a metabolite of Diethylstilbestrol, a non-steroidal synthetic estrogen derivative.
References Liehr, J.G., et al.: Steroids, 40, 713 (1982); Yearley, E. et al.: J. Mol. Struct., 890, 240 (2008);

Applications Spironolactone-d3 is the labeled analogue of Spironolactone (S683000), a synthetic 17-lactone steroid which is a renal competitive aldosterone antagonist in a class of pharmaceuticals called potassium-sparing diuretics, used primarily to treat ascites in patients with liver disease, low-renin hypertension, hypokalemia, and Conn’s syndrome.
References Sutter, J.L., et al.: Anal. Profiles Drug Subs., 4, 431 (1975)

Applications An oxygenated derivative of Cholesterol (C432501); an oxysterol. An inhibitor of human immunodeficiency virus replication in vitro. It induces apoptosis in human monocytic cell lines as well as inducing apoptosis in CEM cells associated with negative regulation of c-Myc.
References Aupeix, K. et al.: Immunobiology, 194, 415 (1995); Moog, C. et al.: Antivir. Chem, Chemother., 9, 491 (1998); Ayala-Torres, S. et al.: Exp. Cell Res., 246, 193 (1999);

Applications An Androgen.Controlled substance.
References Alikhan, A., et al.: J. App. Toxicol., 29, 590 (2009), Christy H., et al.: J. Steroid Biochem. Mol. Biol., 116, 171 (2009), Li, C., et al.: Steroids, 75, 859 (2010),