Steroids and Derivatives

Applications Pregnenolone Carbonitrile is a glucocorticoid receptor antagonist that induces the expression of the CYP3A family of steroid hydroxylases and modulates sterol and bile acid biosynthesis in vivo. Pregnenolone Carbonitrile is an an activator of rat pregnane X receptor (PXR).
References Kliewer, S.A., et. al.: Cell, 92, 73 (1998); Savas, U., et. al.: Drug Metab. Dispos., 28, 529 (2000)

Applications A labelled metabolite of Estradiol (E888000).
References Fishman, H.G, et al.: Biochemistry, 8, 4304 (1969), Ryan, Sugar, J., et al.: J. Clin. Endocrinol. Metab., 50, 137 (1980), Numazawa, M., et al.: Steroids, 38, 149 (1981), Travis, R., et al.: Breast Cancer Res., 5, 239 (2003),

Applications A metabolite of Testosterone (T155000). It is a promising androgen for male hormonal contraception.CONTROLLED SUBSTANCE
References Glass, A., et al.: J. Clin. Endocrinol. Metab., 45, 1211 (1977), Behre, H., et al.: Eur. J. Endocrinol., 140, 414 (1999), Nieschlag, E., et al.: Steroids, 68, 965 (2003), Wang, C., et al.: J. Clin. Endocrinol. Metab., 91, 460 (2006),

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

Impurity USP Exemestane Related Compound A
Applications 1,2-Dihydro Exemestane is a related compound of Exemestane (E957000).
References Johannessen, D., et al.: Clin. Cancer Res., 3, 1101 (1997), Kaufmann, M., et al.: J. Clin. Oncol., 18, 1399 (2000), Coombes, R., et al.: Lancet, 369, 559 (2007),

Applications Bisnorcholenaldehyde can be used to prepare 27-Nor-Δ4-dafachronic acid as a synthetic ligand of Caenorhabditis elegans DAF-12 receptor. It is also used to synthesize 3β,6α-dihydroxy-5α-cholan-23-one.
References Samaja, G., et al.: Bioorg. Med. Chem. Lett., 23, 2893 (2013); Nahar, L., et al.: Tetrahedron, 59, 8623 (2003)

Impurity Ethinylestradiol EP Impurity A
Applications 17-epi-Ethynyl Estradiol (Ethinylestradiol EP Impurity A) is the epimer derivative of Ethynyl Estradiol (E685100). An impurity.
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 Pomper, M., et al: J. Med. Chem., 33, 3143 (1990), Vulliet, E., et al.: Anal. Bioanal. Chem., 387, 2143 (2007), Muller, M., et al.: Environ. Toxicol. Chem., 27, 1649 (2008),

Impurity Abiraterone Impurity 5
Applications 17-Iodo-androsta-5,16-diene-3β-ol is an analog of Abiraterone (A108490) and is used as a reagent in the synthesis of C-17-heteroaryl steroidal CYP17 inhibitors/antiandrogens which exhibit antitumor activity. Abiraterone Impurity 5
References Handratta, V.D., et al.: J. Med. Chem., 48, 2972 (2005)

Applications A metabolite of 17β -Estradiol (E888000).
References Cekan, S., et al.: J. Steroid Biochem., 27, 95 (1989), Martin, R., et al.: Clin. Chem., 46, 100 (2000), Blackwell, L., et al.: Steroids, 68, 465 (2003)

Applications 5β-Pregnane-3α,20α-diol is a metabolite of Progesterone (P755900).
References Beall, et al.: Biochem. J., 31, 35 (1937), Okuda, A., et al.: J. Biol. Chem., 259, 7519 (1984), Russell, D., et al.: Biochemistry, 31, 4737 (1992), Kondo, K., et al.: Eur. J. Biochem., 219, 357 (1994), Westerbacka, J., et al.: J. Clin. Endocrinol. Metab., 88, 4924 (2003),

Applications A labelled metabolite of Cholesterol (C432501).
References Marx, J., et al.: Science, 294, 508 (2001), Plosch, T., et al.: J. Biol. Chem., 277, 33870 (2002), Lund, E., et al.: J .Biol. Chem., 278, 22980 (2003),

Impurity Atorvastatin Diketo Amide Impurity
Applications An Atorvastatin intermediate. Atorvastatin is a selective, competitive HMG-CoA reductase inhibitor. The only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.
References Winters, R., et al.: J. Med. Chem., 36, 1735 (1993), Hagmann, W., et al.: Bioorg. Med. Chem. Lett., 10, 1975 (2000), Istvan, E., et al.: Science, 292, 1160 (2001)

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),

Impurity Progesterone EP Impurity A
Applications Pregna-4,14-diene-3,20-dione (Progesterone EP Impurity A) is a Progesterone derivative
References Wilks, J., et al.: Steroids, 35, 697 (1980), Templeton, J., et al.: J. Med. Chem., 30, 1502 (1987), Blackmore, P., et al.: Mol. Pharmacol., 49, 727 (1996),

Applications Isotope labelled Digitoxin (D445950), is used as a cardiotonic.
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 Foerster, et al.: Arch. Int. Pharmacodyn. Ther., 159, 1 (1966), Jakovljevic, I.M., Anal. Profiles Drug Subs., 3, 149 (1974)

Stability Light Sensitive
Applications 17β-Estradiol (E888000) metabolite. An inhibitor of androstenedione aromatization, which is responsible for the conversion of androgens to estrogens. Agonistic ligands for the estrogen receptor in MCF-7 breast cancer cells.
References Numazawa, M. et al.: J. Steroid. Biochem. Mol. Biol., 96, 51 (2005); Vollmer, G. et al.: J. Seroid. Biochem. Mol. Biol., 39, 359 (1991); Brueggemeier, R. et al.: J. Steroid. Biochem., 21, 709 (1984)

Applications Estradiol (E888000) derivative. An estrogen.
References 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 6β-Hydroxy-11-deoxycortisol is a corticosteroid which is a metabolite of Cortisol (H714615), 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.
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 (3β)-Allopregnanolone Sulfate is the sulfate conjugate of (3β)-Allopregnanolone, a metabolite of progesterone and a potent inhibitory modulator of GABAA receptors.
References Li, P. et al.: Mol. Pharmacol., 77, 539 (2010); El-Etr, M. et al.: Brain Res., 790, 334 (1998); Park-Chung, M. et al.: Brain Res., 830, 72 (1999);

Applications It has been used in combinations as an oral contraceptive.
References Brennan, D.M., et al.: Acta Endocrinol., 44, 367 (1963), Honma., s., et al.: Chem Pharm. Bull., 25 2019 (1977), Usui, T., et al.: Acta Urol. Jpn., 27, 327 (1981),

Applications A 17β-estradiol ester as prodrug of Estradiol (E888000).
References Kabasakalian, P., et al.: J. Pharm. Sci., 55, 642 (1966), Marsh, M., et al.: Br. Med. Bull., 48, 426 (1992),

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)

Impurity Norethindrone Acetate EP Impurity F
Applications 6β-Hydroxy Norethindrone Acetate (Norethindrone Acetate EP Impurity F) is an oxidative product of the drug Norethindrone (N676000). Norethindrone impurity.
References Reif, V., et al.: Pharmaceutical Res., 4, 54 (1987), Rao, P., et al.: Steroids, 59, 621 (1994),

Stability Hygroscopic
Applications Digitoxigenin has been used in a study to assess its stereochemical effects in cancer cytotoxicity. It has also been used in a study to investigate the advantage of gold(I)-catalyzed glycosidation of glycosyl o-alkyl benzoates to assemble digitoxin.
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 Hinds, J., et al.: Chemmedchem, 8, 63 (2013); Ma, Y., et al.: J. Org. Chem., 76, 9748 (2011)

Applications An aromatase inhibitor.
References Aello, A., et al.: J. Nat. Prod., 54, 281 (1991), Salaja, B.A., et al.: Steroids, 59, 330 (1994), Hunter, A.C., et al.: J. Steroid Biochem. Mol. Biol., 87, 301 (2003),

Impurity Levonorgestrel EP Impurity J
Applications 6-Oxo D-(-)-Norgestrel (Levonorgestrel EP Impurity J) is an impurity of D-(-)-Norgestrel (N689510).

Applications Cardiotonic.
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 Aronson, J.K., et al.: Clin. Pharmacokinet, 5,137 (1980), Foss, P.R.B., Anal. Profiles Drug Subs., 9, 207 (1980),

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 6β-Hydroxycortisone can be used as a probe to detect inhibition of CYP3A4 in vivo.
References Peng, C.C., et. al.: Clin. Pharmacol. Ther., 89, 888 (2011)

Stability Light Sensitive
Applications A metabolite of Diethylstilbestrol.
References Liehr, J.G., et al.: Steroids, 40, 713 (1982),

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 Mifepristone is a progesterone receptor antagonist with partial agonist activity. Abortifacient.
References Healy, D.L., et al.: J. Clin. Endocrinol. Metab., 57, 863 (1983), Rauch, M., et al.: Eur. J. Biochem., 148, 213 (1985), Baulieu, E.E., et al.: Science, 245, 1351 (1989), Brogden, R.N., et al.: Drugs, 45, 384 (1993)

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 Used as a reactant in the preparation of pyrimidinone ribosides and analogs that show anti-tumor properties.
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 Driscoll, J.S. et al.: J. Med. Chem., 34, 3280 (1991); Pan, L. et al.: J. Pharm. Biomed. Anal., 52, 589 (2010);

Applications Danazol is an anterior pituitary supressant. Danazol is an anabolic steroid derivative of ethisterone, with mild androgenic side effects (an impeded androgen). Antigonadotropin.
References Ahn, Y.S., et al.: N. Engl. J. Med., 308, 1396 (1983),

Applications A metabolite of Cholesterol (C432501).
References Marx, J., et al.: Science, 294, 508 (2001), Plosch, T., et al.: J. Biol. Chem., 277, 33870 (2002), Lund, E., et al.: J .Biol. Chem., 278, 22980 (2003),

Stability Light Sensitive, Temperature Sensitive
Applications The epimer metabolite of Calcifediol or 25-hydroxyvitamin D3 (C125700).
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 Sakaki, T., et al.: Eur. J. Biochem., 267, 6158 (2000), Kamao, M., et al.: J. Biol. Chem., 278, 1463 (2003),

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 Norethindrone Acetate EP Impurity E
Applications 17-Desethynyl Norethindrone Diacetate (Norethindrone Acetate EP Impurity E) is an impurity of Norethindrone Acetate (N675990). Norethindrone Acetate impurity E.
References Pittman, C.S., et al.: Endocrinology, 68, 248 (1961),

Applications Budesonide (B689490) epimer S. Budesonide 22R epimer is more active than 22S epimer. Used as an antiinflammatory agent.
References Ryrfeldt., A., et a.: J. Steroid Biochem., 10, 317 (1979), Roth, G., et al.: J. Pharm. Sci., 69, 766 (1980), Clissold, S.P., et al.: Drugs, 28, 485 (1984),

Applications Nandrolone (N315000(P)) derivative, which is an anabolic steroid.
References Poujol, N., et al.: J. Biol. Chem., 275, 24022 (2000), Roy, P., et al.: Steroid Biochem. Mol. Biol., 101, 68 (2006), Yin, D., et al.: J. Pharmacol. Exp. Ther., 304, 1323 (2003),

Applications Cortisone (C696500) derivative.

Applications Topical anti-inflammatory agent. Glucocorticoid.
References Stache, U., et al.: Arzneim.-Forsch., 35, 1753 (1985),

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),

Impurity Norethindrone Acetate EP Impurity C
Applications Δ-5(6)-Norethindrone Acetate (Norethindrone Acetate EP Impurity C) is an impurity of Norethindrone Acetate (N675990).

Applications 20α-Dihydrodydrogesterone is the major active metabolite of dydrogesterone (D826000).
References Olbrich, M., et al.: Xenobiotica, 46, 868-874 (2016)

Stability Hygroscopic
Applications Deltamedrane is an impurity in the synthesis of Fluorometholone (F593145), a glucocorticoid; anti-inflammatory.
References Kupferman, A., et al.: Arch. Ophthlmol., 640, 100 (1982); Tokunaga H., et al.: Chem. Pharm. Bull., 32, 4012 (1984);

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 Sodium Estrone-2,4,16,16-d4 Sulfate (Stabilized with TRIS, 50% w/w) (CAS# 285979-80-8) is a useful isotopically labeled research compound.

Applications O,O-Dimethyl Methylphosphonate is a commercially used preignition additive for gasoline, anti-foaming agent, plasticizer, stabilizer and antistatic agents.
References Jang, S.H., et al.: J. Korean. Phy. Soc., 55, 294 (2009); Schneider, B.B., et al.: Int. J. Mass. Spectro., 298, 45 (2010);

Stability Temperature Sensitive
Applications Zilpaterol is a β-Adrenergic agonist. Growth promotant.
References Shelver, W.L., et al.: J. Agric. Food Chem., 52, 2159 (2004)

Impurity Testosterone Decanoate EP Impurity I
Applications A metabolite of Testosterone (T155000). Controlled substance.
References Peng, S., et al.: Steroids, 67, 39 (2002), Pozo, O., et al.: Drug Metab. Dispos., 37, 2153 (2009),

Applications A metabolite of 17β-Estradiol.
References Cushman, M., et al.: J. Med. Chem., 38, 2041 (1995), D’Amato, R.J., et al.: Proc. Natl. Acad. Sci. USA, 91, 3964 (1994), Forsis, T., et al.: Nature, 368, 237 (1994)

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 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 major steroidal sapogenin from Radix ophiopogon japonicus with robust anti-inflammatory and anti-thrombotic activities. Studies suggest that it inhibits adhesion of leukocytes to a human umbilical vein endothelial cell line (ECV304) injured by tumor necrosis factor-α (TNF-α) in a concentration-dependent manner.
References Huang, Y. et al.: Drug Dev. Res., 69, 196 (2008); Huang, Y. et al.: J. Pharmacol. Sci., 108, 198 (2008); Song, J. et al.: J. Pharmacol. Sci., 113, 409 (2010);

Applications An oxidizing agent, especially in steroid synthesis.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications Tetrahydrodehydrocorticosterone inhibits aldosteronogenesis by intact cells at concentrations that inhibited angiotensin binding.
References Campanile, C.P., Goodfriend, T.L.: Steroids, 37, 681(1981)

Stability Hygroscopic
Applications A labelled glucocorticoid, antiasthmatic (inhalant); antiallergic (nasal).
References Florey, K., et al.: Anal. Profiles Drug Subs., 1, 397 (1972), Bernstein, I.L., et al.: Chest, 81, 20 (1982),

Applications The hydrophilic metabolite of Dexamethasone (D298800).
References Draper, R., et al.: Drug Res., 32, 317 (1982), Watkins, P., et al.: Clin. Pharmacol. Ther., 52, 265 (1992), Yamamoto, N., et al.: J. Clin. Oncol., 18, 2301 (2000), Slaviero, K., et al.: Br. J. Clin. Pharmacol., 57, 44 (2004),

Applications 5β-Dihydro Progesterone-d8 is labelled which is labelled 5β-Dihydro Progesterone (D449280), a metabolite of the neuroactive steroid Progesterone (PROG) (P755900).
References Wiebe, J., et al.: Cancer Res., 60, 936 (2000), Lacasa, D., et al.: J. Biol. Chem., 276, 11512 (2001), Johansson, I., et al.: Brain Res., 934, 125 (2002), Leonhardt, S., et al.: Steroids, 68, 761 (2003),

Applications Betamethasone acetate (BA) is a glucocorticoid steroid with anti-inflammatory and immunosuppressive properties which can be used in treatment of asthma and itching.
References Kerns, E., et al.: J. Pharm. Sci., 90, 1838 (2001), Seidler, J., et al.: J. Med. Chem., 46, 4477 (2003), Alsenz, J., et al.: J. Pharm. Sci., 96, 1748 (2007),

Applications Ospemifene is used to treat dyspareunia. It is a selective estrogen receptor modulator (SERM) acting similarly to an estrogen.
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 Rutanen, E., et al.: Menopause, 10, 433 (2003);

Impurity Budesonide EP Impurity L
Applications 11-Keto Budesonide (Budesonide EP Impurity L) is an impurity of Budesonide (B689490), an antiinflammatory agent.
References Brattsand, R., et al.: J. Steroid Biochem., 16, 779 (1982), Clissold, S., et al.: Drugs, 28, 485 (1984), Edsbacker, S., et al.: Drug Metab. Dispos., 15, 403 (1987), Pozo, O., et al.: Anal. Bioanal. Chem., 398, 1759 (2010),

Applications Estradiol derivative which shows antioxidant activity.
References Fotsis, T., et al.: J. Steroid. Biochem., 28, 215 (1987), Sack, M., et al.: Lancet, 343, 269 (1994), Brunelli, R., et al.: Biochemistry, 39, 13897 (2000), Li, A., et al.: Nat. Med., 8, 1235 (2002),

Applications Ospemifene-d4 is the isotope labelled analog of Ospemifene (O703000). Ospemifene is used to treat dyspareunia. It is a selective estrogen receptor modulator (SERM) acting similarly to an estrogen.
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 Rutanen, E., et al.: Menopause, 10, 433 (2003);

Applications 9-Dehydrotestosterone, is the analogue of Testosterone (T155000), 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.
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 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),

Impurity Levonorgestrel EP Impurity L
Applications D-Ethyl Gonendione (Levonorgestrel EP Impurity L) is a Norgestrel intermediate.
References Hiraga, K., et al.: Chem. Pharm. Bull., 13, 1289 (1965), Bergink, F.W., et al.: J. Steroid Biochem., 14, 175 (1981), Phillips, A., et al.: Contraception, 36, 181 (1987), Corson, S.L., et al.: Am. J. Obstet. Gynecol., 168, 1017 (1993),

Applications Pregnanetriol is a steroid present at elevated levels in the urine of patients with congenital adrenal hyperplasma. During treatment with cortisol replacement, elevated urine Pregnanetriol levels indicate insufficient dosage of cortisol. Pregnanetriol is also one of the urinary marker for adrenal incidentaloma. Pregnanetriol is a metabolite of Androstenedione (A637550).
References Kinoshita, K. et al.: J. Clin. Endocrinol., 26, 1219 (1966); Kotlowska, A. et al.: Clin. Biochem., 42, 448 (2009); Wang, J. et al.: Zhipu Xue., 25, 201 (2004);

Applications 2-Nitrobenzotrifluoride can be used for self-repairing polyimide based on dynamic imine bond.
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 Lei, X., et.al., Faming Zhuanli Shenqing, 15, (2019);

Impurity Fulvestrant EP Impurity B
Applications A metabolite of Fulvestrant (F862500).
References Rao, P., et al.: J. Steroid Biochem., 25, 417 (1986), Wakeling, A., et al.: J. Steroid Biochem. Mol. Biol., 43, 173 (1992), DeFriend, D., et al.: Cancer Res., 54, 408 (1994),

Applications Isotope labelled testosterone enanthate is a derivative of testosterone (T155000), the principal hormone of the testes, produced by the interstitial cells.
References Janjic, M.M., et al.: Reproduct. Toxicol., 34, 686 (2012); Lacreuse, A., et al.: Physiol. Behaviour., 106, 229 (2012);

Applications Isotope labelled Ethynyl Estradiol (E685100), an oral contraceptive (1), is a synthetic steroid with high oral estrogenic potency. Used in estrogen replacement therapy (2). This compound is a contaminant of emerging concern (CECs). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
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 1. Koetsawang, S. et al.: Contraception. 1982 March:25(3) p231-2412. Cuttler, L. et al.: J. Endocrinol. Metab. 1985 Jun;60(6):1087-92.

Applications Calcipotriol Monohydrate is a synthetic derivative of calcitriol, which is a biologically active form of Vitamin D3 (1). Calcipotriol Monohydrate can be used to treat psoriasis (2).
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 (1) Kim, D. H., et al.: Ann Dermatol. 24, 341 (2012) (2) Queille-Roussel, C., et al.: Clin Drug Investig (2016)

Applications The trans metabolite of Latanoprost (L177280), Prostaglandin analog.
References Botchkareva, N., et al.: FASEB J., 115, 645 (2001),

Applications 2-Methoxy-17α-ethynyl Estradiol is a metabolite of the potent synthetic estrogen 17α-Ethynylestradiol (E685100).
References Maggs, J.L. et al.: Xenobiotica, 13, 421 (1983); Maggs, J.L. et al.: Biochem. Pharmacol., 32, 2793 (1983); Abdel-Aziz, M.T. et al.: Steroids, 15, 695 (1970);

Applications A Cortisone derivative, a glucocorticoid.
References Mickelson, K., et al.: Biochemistry, 20, 6211 (1981), Westphal, U., et al.: J. Steroid Biochem., 19, 1 (1983),