APIs pour la recherche et les impuretés

Applications 2-(2-Fluoro[1,1'-biphenyl]-4-yl)-2,3-dimethylbutanedioic acid is an impurity of Flurbiprofen (F598700), an anti-inflammatory used as an analgesic. Flurbiprofen impurity B.
References Beaulieu, N., et al.: Drug Develop. Industrial Pharmacy, 17, 1843 (1991);

Stability Hygroscopic
Applications Hydrocortisone 21-Carboxylic Acid is a derivative of Hydrocortisone (H714615), a glucocorticoid produced by the zona fasciculata of the adrenal gland.
References Lee, H.J., et al.: Drugs. Under. Exper. Clin. Res., 10, 835 (1984); Monder, C., et al.: Steroids., 42, 549 (1983);

Applications N-Acetyl-S-methyl-L-cysteine is a metabolite of Acetaminophen (A161220), an analgesic and antipyretic agent used as a pain reliever to treat headache, muscle aches, and arthritis (1,2,3).
References (1) McGill, M. R. and Jaeschke, H. Pharm Res. 30, 2174 (2013)(2) Lohse, C., et al.: J. Agric. Food Chem., 48, 5913 (2000) (3) Perrey, D., et al.: Bioorg. Med. Chem. Lett., 10, 551 (2000)

Applications A thiol specific spin label.
References Seelig, B., et al.: Chem. Biol., 6, 167 (1999),

Applications Antibacterial.
References Bourguignon, G.J., et al.: Antimicrob. Agents Chemother., 4, 479 (1973), Grubb, P.E., et al.: Anal. Profiles Drug Subs., 8, 371 (1979), Wright, H.T., et al.: Science, 213, 455 (1981),

Stability Hygroscopic
Applications Diosmetin 3’,7-Diglucuronide is a metabolite of Diosmetin (D485000) which is a flavonoid often administered in the treatment of chronic venous insufficiency, hemorrhoids, and related affections.
References Silverstro, L., et al.: Anal. Bioanal. Chem., 405, 8295 (2013); Boutin, J., et al.; Drug Metab. Dispos., 21, 1157 (1993)

Impurity Tranexamic EP Impurity C
Stability Hygroscopic
Applications 4-(Aminomethyl)-1-cyclohexene-1-carboxylic Acid (Tranexamic EP Impurity C) is an impurity of Tranexamic acid (T714505).

Applications Tibolone intermediate.
References Wieland, P., et al.: Helv. Chim. Acta, 50, 1453 (1967), Funke, C.W., et al.: J. Labelled Comp. Radiopharm., 20, 843 (1983),

Applications A metabolite of Torsemide (T548750).
References Besenfelder, E., et al.: J. Pharm. Biomed. Anal., 5, 259 (1987), Vormfelde, S., et al.: Clin. Pharmacol. Ther., 76, 557 (2004),

Applications Anabolic steroid.
References Musshoff, F., et al.: J. For. Sci., 42, 1119 (1997), Pagonis, T., et al.: Clin. Toxicol., 46, 57 (2008), Sartorio, A., et al.: Eur. J. Endocrinol., 150, 511 (2004),

Applications Suvorexant-d6 is the labeled analog of Suvorexant (S870000), a dual (non-selective) orexin receptor antagonist in development by Merck & Co. for the treatment of insomnia. It works by turning off wakefulness rather than by inducing sleep. Users of higher doses had an increased rate of suicidal ideation.
References Cox, C., et al.: J. Med. Chem., 53, 5320 (2010); Baxter, C., et al.: Org. Process Res. Dev., 15, 367 (2011); Winrow, C., et al.: J. Neurogenet., 25, 52 (2011); Mieda, M., et al.: CNS Drugs, 27, 83 (2013); Osborne, R.: Nat. Rev. Drug Discov., 12, 492 (2013)

Applications A biotinylated cross-linking reagent.

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). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.
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 DL-CITRAMALIC ACID (cas# 2306-22-1) is a useful research chemical.

Applications 6-Hydroxymelatonin Glucuronide is a glucuronide-conjugated metabolite of Melatonin (M215000).
References Li, Chaoyue, et al.: J. of Pineal Res., 54(1), 100-106 (2013)

Stability Hygroscopic
Applications NPEC-caged-noradrenalin is a Noradrenalin caged by a NPEC group (photosensitive 1-(2-nitrophenyl)ethoxycarbony).

Applications 2-Hydroxyglutarate-13C5,d8 is used in the 13C NMR detection of 2-hydroxyglutarate in tissue extracts from isocitrate dehydrogenase-mutated gliomas.
References Pichumani, K., et al.: Anal. Biochem., 481, 4 (2015)

Impurity Beclomethasone Dipropionate EP Impurity F
Applications 6α-Bromo Beclomethasone Dipropionate (Beclomethasone Dipropionate EP Impurity F) is an impurity of Beclomethasone Dipropionate (B131030).

Stability Hygroscopic
Applications 3,4-Dihydroxybenzaldehyde-d3 is an intermediate in synthesizing DL-threo-Droxidopa-d3 (D689953). It is an isotope labelled compound of DL-threo-Droxidopa (D689950), a synthetic amino acid precursor of Norepinephrine. An antiparkinson.
References Bartholini, J., et al.: J. Pharmacol. Exp. Ther ., 193, 523 (1975), Kato, T., et al.: Biochem. Pharmacol., 36, 3051 (1987), Kawabata, A., et al.: Br J. Pharmacol., 111, 503 (1994),

Stability Hygroscopic
Applications 9-Oxofolic Acid is a derivative of Folic Acid (F680300) which is a vitamin needed to synthesize DNA, conduct DNA repair and methylate DNA. Folic Acid also acts as a cofactor in biological reactions involving folate.
References Xu, L., et al.: Mol. Pharm., 7, 1311 (2010), Everette, J., et al.: J. Agric. Food Chem., 58, 8139 (2010), Alshatwi, A., et al.: Food, Chem., Toxicol., 48, 1881 (2010), McKay, D., et al.: Nut. J., 9 (2010),

Applications A derivative of imidazole used in the synthesis of heteroxanthine.
References Sarasin, J., et al.: Helv. Chim. Acta, 7, 713 (1924),

Applications (S)-Equol and R-Equol are metabolites of the soy isoflavones Daidzein (D103500) and Genistein. Both have significant biological actions.
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008),

Applications A highly reactive thiol-specific spin-label analogue. The NO-acetylated diamagnetic form of MTSL (Cat. # O875000).
References Altenbach, C., et al.: Biochem., 40, 15471 (2001),

Applications Phytosiderophores are produced in higher plants as iron chelating amino acids that promote uptake of iron from soil.
References Klair, S., et al.: J. Plant Nutr., 19, 1295 (1996),

Applications A metabolite of Varenicline. Metabolite M7.
References Dow, J., et al.: Drug Metab. Dispos., 22, 738 (1994), Toide, K., et al.: Biochem. Pharmacol., 67, 1269 (2004), Coe, J., et al.: J. Med. Chem., 48, 3474 (2005), Doll, R., et al.: Br. J. Cancer, 92, 426 (2005),

Applications A potent inhibitor of purine nucleoside phosphorylase
References Kazmers, I.S., et al.: Science, 214, 1137 (1981), Chern, J-W., et al.: J. Med. Chem., 36, 1024 (1993)

Applications L-Phenylephrine (cas# 59-42-7) is a useful research chemical.

Applications 2-(4-Hydroxyphenyl)-3-methyl-1H-indol-5-ol is used as a reagent in the synthesis of tethered indoles as functionalizable ligands for estrogen receptor.
References Trogden, B.G., et al.: Bioorg. Med. Chem. Lett., 19, 485 (2009)

Impurity Cefuroxime Sodium Impurity B (EP)
Applications Cefuracetime is an impurity of Cefuroxime, which is an antibacterial.
References O’Callaghan, C.H., et al.: Antimicrob. Agents Chemother., 9, 511 (1976), Norrby, R., et al.: J. Antimicrob. Chemother., 3, 355 (1977), Brogden, R.N., et al.: Drugs, 17, 233 (1979), Wozniak, J.R., et al.: Anal. Profiles Drug Subs., 20, 209 (1991),

Applications (3R,4S,5R)-4-Hydroxy-5-[(1S)-1-hydroxy-2-methylpropyl]-3-methyl-2-pyrrolidinone-5-carboxylic Acid (cas# 145451-97-4) is a compound useful in organic synthesis.

Applications 7-Hydroxy-2-acetylaminofluorene (cas# 363-49-5) is a compound useful in organic synthesis.
References Monteith, D.K.: Cancer Lett. (Shannon, Irel.), 64(2), 109 (1992), Mackenzie, P.I., et al.: Cancer Res., 53(7), 1529 (1993), Jin, C.J., et al.: Carcinogenesis, 14(12), 2637 (1993), Juchau, M.R., et al.: Toxicol. Appl. Pharmacol., 80(1), 137 (1993)

Applications A fluorescent trifunctional highly symmetric probe. Shows remarkably high nonlinear optical properties.
References Bollaert, V., et al.: Adv. Mater., 5, 4, 268 (1993)

Applications cis-3,5-Dimethylpiperidine (cas# 14446-75-4) is a useful research chemical.

Applications Azilsartan Amidoxime is an intermediate used in the preparation of azilsartan kamedoxomil for use as an angiotensin II receptor blocker. Azilsartan Impurity.
References Garaga, S., et al.: Org. Process Res. Dev., 19, 514 (2015); Sethi, M. K., et al.: Pharma Chemica, 7, 20 (2015)

Applications m-Toluidine is a reagent that is used in the synthesis of torsemide and its derivatives which are used as a 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 Lesne, M., et al.: In. J. Clin. Pharmacol. Ther. Toxicol., 20, 382 (1982), Brater, D.C., et al.: Clin. Pharmacol. Ther., 42, 187 (1987),

Stability Hygroscopic
Applications A metabolite of Gatifloxacin; a new quinolone with antibacterial activity.
References Naber, C., et al.: Antimicrob. Agents Chemother., 45, 293 (2001), Herzler, M., et al.: J. Anal. Toxicol., 27, 233 (2003), Li, Y., et al.: J. Pharm. Biomed. Anal., 35, 1101 (2004),

Applications 6-(2,4-Difluorophenoxy)-8-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one is an intermediate in the synthesis of Pamapimod (P167500), a selective inhibitor of the α-isoform of p38 MAP kinase.
References Goldstein, D. M., et al.: J. Med. Chem., 54, 2255 (2011);

Applications Labelled Nicotinic acid. It is a precursor of the coenzymes NAD and NADP. Widely distributed in nature; appreciable amounts are found in liver , fish, yeast and cereal grains. Dietary deficiency is associated with pellagra. The term “niacin” has also been applied to nicotinamide or to other derivatives exhibiting the biological activity of nicotinic acid. Vitamin (enzyme cofactor).A representative lot contains >20% d4.
References Darby, W.J., et al.: Nutr. Rev., 33, 289 (1975), Black, A., et al.: Eur. J. Clin. Nutr., 54, 395 (2000), Cole, T., et al.: Br. Med. J., 320, 1240 (2000), Forshee, R., et al.: J. Nutr., 134, 2733 (2004),

Applications Calycosin is a known antioxidant that prevent redox imbalance in organisms. Also, it possesses anti-tumor, anti-inflammation and osteogenic properties; Useful as a therapeutic reagent for bone loss-associated diseases.
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 Lu, L., et al.: J. Biosci. Bioeng., 124, 1-7 (2017); Quan, G., et al.: Int. J. Mol. Sci., 16, 29496-29507 (2015)

Applications (R,S)-Equol 7-β-D-Glucuronide is a glucuronide metabolite of isoflavone Daidzein (D103500).
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008)

Stability Hygroscopic
Applications A semi-synthetic analogue of Carminomycin with cytostatic activity.
References Mossman, T., et al.: J. Immunol. Methods, 65, 55 (1983), Janicke, R.U., et al.: J. Biol. Pharm., 273, 9357 (1998), Sidorova, T.A., et al.: J. Med. Chem., 21, 5330 (2002),

Applications Aminorex (A629200) derivative.

Applications Labelled 2-Oleoylglycerol (O528020). A metabolite of 2-acylglycerol used as biomarker.
References Owen, M., et al.: Biochem. J., 323, 17 (1997), Waterman, I., et al.: J. Lipid Res., 43, 1555 (2002), Chon, S., et al.: J. Biol. Chem., 282, 33346 (2007),

Applications A labelled metabolite of Eslicarbazepine acetate, (BIA 2-093), a novel central nervous system drug. A keto derivative of Carbamazepine. Used as an anticonvulsant.Only available as a mixture of deuterated material:d-1: 1%d-2: 9%d-3: 35%d-4: 55%
References Dam., M., et al.: Epilepsy Res., 3, 70 (1989), Beydoun, A., et al.: Expert Opin. Pharmacother., 3, 59 (2001),

Applications (2S,3S,5S)-5-amino-1,6-diphenyl-2-([[thiazol-5-ylmethoxy)carbonyl]amino]hexan-3-yl 2-(3-((2-isopropylthiazol-4-yl)methyl)-3-methylureido)-3-methylbutanoate Hydrochloride, is a prodrug of Ritonavir (R535000), which is a selective HIV protease inhibitor.
References Daluge, S., et al.: Antimicrob. Agents Chemother., 38, 1590 (1994), Ammaranond, P., et al.: J. Clin. Virol., 26, 153 (2003), Harrigan, P., et al.: J. Infect. Dis., 191, 339 (2005), Miller, J., et al.: Bioorg. Med. Chem. Lett., 16, 1788 (2006);

Applications 4-{[4-(4-Methyloxy-phenyl)-piperazin-1-yl]-phenyl}-carbamic Acid Phenyl Ester (cas# 74853-06-8) is a compound useful in organic synthesis.

Applications Daidzein-3',5',8-d3 is labelled Daidzein (D103500) which is an inactive analog of Genistein (Cat. #G350000). It blocks the G1 phase of the cell cycle in Swiss 3T3 cells by inhibiting casein kinase II activity.
References Jones, P., et al.: J. Biol. Chem., 274, 32008 (1999), Hassan, M., et al.: Anticancer Res., 19, 5657 (1999), Salti, G., et al.: Eur. J . Cancer, 36, 796 (2000).

Applications rac 1-Palmitoyl-2-oleoyl-3-chloropropanediol-d5 is labelled rac 1-Palmitoyl-2-oleoyl-3-chloropropanediol (P160500) which is a fatty acid ester with glycerol chlorohydrins found in a variety of vegetable oils.
References Hamlet, C., et al.: Food Addit. Contam., 19, 619 (2002); Zelinkova, Z., et al.: Eur. Food Res. Technol., 228, 571 (2009)

Applications A B-Adrenergic receptor agonist. A Bronchodilator.
References Akhtar, S., et al.: J. Vet. Pharmacol. Ther., 21, 388 (1998), Kasprowicz, D.J., et al.: J. Immunol., 165, 680 (2000)

Applications 4-Bromo-2,2-diphenylbutyric Acid (cas# 37742-98-6) is a compound useful in organic synthesis.

Applications Labelled Nitisinone. Nitisinone is a herbicidal triketone that inhibits 4-hydroxyphenylpyruvate dioxygenase (HPPD), an enzyme involved in plastoquinone biosynthesis in plants and in tyrosine catabolism in mammals. It is used in treatment of inherited tyrosinemia type I.
References Lindstedt, S., et al.: Lancet, 340, 813 (1992), Ellis, M.K., et al.: Toxicol. Appl. Pharmacol., 133, 12 (1995), Lock, E.A., et al.: J. Inherited Metab. Dis., 21, 498 (1998),

Applications Carbazomycin A is used in biological studies for antimalarial and antituberculosis activity which are isolated from Streptomyces.
References Intaraudom, C., et al.: Tetrahedron, 67, 7593 (2011);

Applications A deuterated version of Penciclovir, an antiviral.
References Weinberg, A., et al.: Antimicrob. Ag. Chemother., 36, 2037 (1992), McMeekin, J.R., et al.: Anal. Proc., 29, 178 (1992),

Applications 1,2-Dichloro-2-methylpropane (cas# 594-37-6) is a useful research chemical.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Stability Very Hygroscopic
Applications Inhibits protein synthesis by binding to L6 protein of 50S ribosomal subunit. Antibacterial.Antibiotic complex consists of three closely related components, gentamicins C1, C2, C1a, and also gentamicin A which differs from the other members of the complex but is similar to Kanamycin C.Gentamicin C1: R1=R2=CH3Gentamicin C2: R1=CH3; R2=HGentamicin C1A: R1=R2=H
References Holt, H.A., et al.: J. Antimicrob. Chemother., 34, 747 (1994), Wilschanski, M., et al.: Am. J. Respir. Crit. Care Med., 161, 860 (2000),

Applications Harman alkaloid like harmane, harmine, harmalol, harmaline obtained from Banisteriopsis caapi L. showed cytotoxicity, antimicrobial activity against Staphylococcus aureus, Escherichia coli, Proteus vulgaris and Candida albicans.
References Sigg, E.B., et al.: Arch. Int. Pharmacodyn., 149, 164 (1964), Saano, V., et al.: Acta Pharmacol. Toxicol., 51, 300 (1982), Tse, S., et al.: Biochem. Pharmacol., 42, 459 (1991), Rommelspacher, H., et al.: Eur. J. Pharmacol., 252, 51 (1994), Louis, E., et al.: Neurology, 59, 1940 (2002),

Applications Sulfadimethoxine-d4 is a isotope labeled version of Sulfadimethoxine (S699060), a sulfonamide antibiotic.
References Seki, et al.: Arzneim.-Forsch., 15, 1441 (1965), Bohni, et al.: Chemotherapy, 14, 195 (1969),

Applications Labeled D-Mannitol is widespread in plants and plant exudates; obtained from manna and seaweeds. D-Mannitol is used in the food industry as anticaking and free-flow agent, flavoring agent, lubricant and release agent, stabilizer and thickener and nutritive sweetener.
References Pigman, W., et al.: The Carbohydrates, 249 (1957), Makkee, M., et al.: Chem. Commun., 930 (1980),

Applications A metabolite of Nevirapine (N391275).
References Rettie, A., et al.: J. Biol. Chem., 263, 13733 (1988), Lamson, M., et al.: Biopharm. Drug Dispos., 20, 285 (1999), Guengerich, F., et al.: Chem. Res. Toxicol., 14, 611 (2001), Lu, W., et al.: Drug Metab. Dispos., 36, 1624 (2008),

Impurity Atorvastatin epoxy tetrahydrofuran impurity
Applications Atorvastatin (A791750) impurity.
References Kracun, M. et al.: J. Pharmac. Biomed. Anal., 50, 729 (2009);

Applications Labelled Cefuroxime (C248050). Antibacterial.
References O’Callaghan, C.H., et al.: Antimicrob. Agents Chemother., 9, 511 (1976), Norrby, R., et al.: J. Antimicrob. Chemother., 3, 355 (1977), Brogden, R.N., et al.: Drugs, 17, 233 (1979), Wozniak, J.R., et al.: Anal. Profiles Drug Subs., 20, 209 (1991),

Applications A psychotropic agent with anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. It is a precursor to the active substance Desmethyldiazepam (D291595).
References Ochs, H.R. et al.: J. Clin. Pharmacol., 24, 446 (1984); Takagi, H. et al.: Nip. Yakur. Zas., 66, 134 (1970);

Applications (R,S)-Equol is a human urinary metabolite of the soy isoflavones Daidzein (D103500).
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008),

Applications A labelled metabolite of Ciclopirox.
References Kellner, H.M., et al.: Arzneim.-Forch., 31, 1337 (1981),

Applications C14 Ceramide (cas# 34227-72-0) is a compound useful in organic synthesis.