Dérivés de Quinazoline et de Quinoléine

<p>Stability Hygroscopic<br>Applications A novel active metabolite of the anti-cancer drug Tamoxifen (T006000).<br>References Furr, B., et al.: Pharmacol. Ther., 25, 127 (1984), Leonessa, F., et al.: Cancer Res., 54, 441 (1994), Stearns, V., et al.: Lancet, 360, 1851 (2002), Rae, J., et al.: Pharmacogenetics, 13, 501 (2003), Zheng, Y., et al.: Drug Metab. Dispos., 35, 1942 (2007),<br></p>

<p>Applications An intermediate in the synthesis of 2,4-disubstituted pyridines. A fluorogenic reagent for the spectrofluorimetric determination of primary amines.<br>References Toche, R.B. et al.: H. Heterocyclic Chem., 45, 1711 (2008); Sabry, S.M., J. Pharm. Biomed. Anal., 40, 1057 (2006);<br></p>

<p>Applications A metabolite of Celecoxib (C251000).<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Penning, T., et al.: J. Med. Chem., 40, 1347 (1997), Paulson, S., et al.: Drug Metab. Dispos., 28, 308 (2000), Kirchheiner, J., et al.: Clin. Pharmacol. Ther., 71, 286 (2002),<br></p>

<p>Applications 3-Amino-4-methylbenzoic acid is used as a starting material to synthesize cyclopropamitosene compounds, which have potential antitumour activity. 3-Amino-4-methylbenzoic acid also has some partial herbicidal activity.<br>References Jones, G. &amp; Moody, C.: J. Chem. Soc., Perkin Trans., 1, 2455 (1989); Thomas, G.: J. Agr. Food Chem., 32, 747 (1984)<br></p>

<p>Stability Moisture Sensitive - Store Under Inert Atmosphere<br>Applications 3-Methyl-8-quinolinesulfonyl Chloride (cas# 74863-82-4) is a compound useful in organic synthesis.<br></p>

<p>Applications 4-(Methylamino)-3-nitrobenzoic Acid (cas# 41263-74-5) is a compound useful in organic synthesis.<br></p>

<p>Impurity Levofloxacin USP Related Compound E<br>Applications Levofloxacin (L360000) impurity. A photodegradation product of Levofloxacin (L360000) in aqueous solution. Levofloxacin USP Related Compound E.<br>References Yoshida, Y., et al.: Arzneim.-Forsch., 43, 601 (1993),<br></p>

<p>Applications A novel labelled inhibitor of human immunodeficiency virus type 1 integrase.<br>References Chou, T., et al.: Eur. J. Biochem., 115, 207 (1981), Baba, M., et al.: Antimicrob. Agents Chemother., 31, 1613 (1987), Craigie, R., et al.: J. Biol. Chem., 276, 23213 (2001), Chen, X., et al.: J. Mol. Biol., 380, 504 (2008),<br></p>

<p>Applications Rabeprazole (R070500) N-aralkyl impurity.<br>References Fujisaki, H., et al.: Biochem. Pharmacol., 42, 321 (1991), Morri, M., et al.: J. Biol. Chem., 268, 21553 (1993), Pingili, R., et al.: Pharmazie, 60, 814 (2005),<br></p>

<p>Applications Efavirenz (E425000) potential synthetic impurity and degradation product.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Phelan, P., et al.: J. Chromatogr. Sci., 19, 13 (1981), Mangia, A., et al.: Anal. Chim. Acta., 149, 349 (1983), Careri, M., et al.: J. Chromatogr., 647, 79 (1993), van Beek, T., et al.: Phytochem. Anal., 6, 1 (1995),<br></p>

<p>Applications N-[3-Methyl-1-(phenylcyclobutyl)butyl]-N,N-dimethylamine Hydrochloride is an impurity of Sibutramine Hydrochloride (S422500), a serotonin and noradrenaline reuptake inhibitor.<br>References Hanotin, C., et al.: Int. J. Obesity, 22, 32 (1998)<br></p>

<p>Applications Labelled Famotidine. Histamine H2-receptor antagonist. Antiulcerative.<br>References Takeda, M., et al.: Arzneim.-Forsch., 32, 734 (1982), Miwa, M., et al.: J. Clin. Pharmacol. Ther. Toxicol., 22, 214 (1984), Takabatke, T., et al.: Eur. J. Clin. Pharmacol., 28, 327 (1985),<br></p>

<p>Applications Flumequine Ethyl Ester is an impurity of Flumequine (F445000), a quinolone antibacterial.<br>References Stilwell, G., et al.: Antimicrob. Agents Chemother., 7, 483 (1975), Rohlfing, S.R., et al.: J. Antimicrob. Chemother., 3, 615 (1977),<br></p>

<p>Applications Sitagliptin intermediate.<br>References Mohri, K., et al.: Chem. Pharm. Bull., 30, 3097 (1982), Sarges, R., et al.: J. Med. Chem., 33, 2240 (1990), Cameron, M., et al.: J. Pharm. Biomed. Anal., 28, 137 (2002),<br></p>

<p>Applications Tadalafil-13C2,d3 is labelled Tadalafil (T004500) which is used for the treatment of erectile dysfunction. It is a phosphodiesterase 5 inhibitor.<br>References Carrier, S., et al.: Can. J. Urol., 10(1), 12 (2003), Doggrell, S.A., et al.: Expert Opin. Pharmacother., 6, 75 (2005), Forgue, S.T., et al.: Br. J. Clin. Pharmacol., 61, 280 (2005)<br></p>

<p>Applications 3-Hydroxy-1-methyl-1-Azoniabicyclo[2.2.2]octane is an impurity in the synthesis of Clidinium Bromide (C576250), an anticholinergic. Used as an antispasmodic.<br>References Zhang, L., et al.: Pharm. Res., 25, 1902 (2008), Sanderson, H., et al.: Toxicol Lett., 187, 84 (2009),<br></p>

<p>Applications 2-(6-Methoxy-2-naphthyl)acetonitrile (cas# 71056-96-7) is a compound useful in organic synthesis.<br></p>

<p>Applications (S)-4-Hydroxy Propranolol is the main metabolite of (S)-Propranolol (P831795).<br>References Shwed, J., et al.: Xenobiotica, 22, 973 (1992), Fujita, K., et al.: Biol. Pharm. Bull., 22, 446 (1999), Walle, U., et al.: Drug Metab. Dispos., 30, 564 (2002),<br></p>

<p>Applications It is a non-ergot dopamine agonist drug and is indicated for the treatment of Parkinson’s disease.<br>References Loschmann, P., et al.: Eur. J. Pharmacol., 166, 373 (1989), Edgar, D., et al.: J. Pharmacol. Exp. Ther., 283, 757 (1997), Ferreira, J., et al.: Lancet, 355, 1333 (2000), Arnulf, I., et al.: Neurology, 58, 1019 (2002), Wisor, J., et al.: Neuroscience, 132, 1027 (2005),<br></p>

<p>Applications An Efavirenz (E425000) impurity.<br></p>

<p>Applications 5-Chloro-N-methylthiophene-2-carboxamide is an impurity of Rivaroxaban (R538000), which is a novel antithrombotic agent. A highly potent and selective, direct FXa inhibitor.<br>References Ansell, J., et al.: Drugs, 64, 1 (2004), Eriksson, B., et al.: J. Thromb. Haemost., 3, 103 (2005), Kubitza, D., et al.: Clin. Pharmacol. Ther., 78, 412 (2005),<br></p>

<p>Impurity Bicalutamide USP Related Compound B/ Bicalutamide EP Impurity B<br>Applications 3-Fluorophenyl Bicalutamide (Bicalutamide USP Related Compound B) is a steroisomer of Bicalutamide (B382000), non-steroidal peripherally active anti-androgen. Used as an antiandrogen, antineoplastic (hormonal).<br>References Tucker, H., et al.: J. Med. Chem., 31, 954 (1988), Cockshott, I.D., et al.: Eur. Urol., 18, Suppl. 3, 10 (1990), Cockshott, I., et al.: Br. J. Clin. Pharm., 36, 339 (1993), McKillop, D., et al.: Xenobiotica, 25, 623 (1995),<br></p>

<p>Applications Loratadine-d5 (ethyl-d5) (CAS# 1398065-63-8) is a useful isotopically labeled research compound.<br></p>

<p>Applications A labelled metabolite of the drug Bupropion (B689625).<br>References Hsyu, P-H., et al.: J. Clin. Pharmacol., 37, 737 (1997)<br></p>

<p>Applications USP Paroxetine Related Compound E Mixture is a reference standard composed of Paroxetine Hydrochloride (P205750) spiked with 4-(4-Fluorophenyl)-1,2,3,6-tetrahydro-1-methyl-pyridine Hydrochloride (F595220). Paroxetine Hydrochloride (P205750) is a selective serotonin reuptake inhibitor. Used as an antidepressant. 4-(4-Fluorophenyl)-1,2,3,6-tetrahydro-1-methyl-pyridine Hydrochloride (F595220) is the active metabolite of 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) (M325910), N-Methyl-4-phenylpyridinium (MPP+), selectively destroys the dopaminergic neurons and induces the symptoms of Parkinson's disease.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Lassen, J.B.: Eur. J. Pharmacol., 47, 351 (1978), Lund, J., et al.: Acta Pharmacol. Toxicol., 51, 351, (1982); Gerlach, M., et al.: Eur. J. Pharmacol., 208, 273 (1991), Tipton, K., et al.: J. Neurochem., 61, 1191 (1993), Wimalasena, D., et al.: J. Biol. Chem., 279, 15298 (2004),<br></p>

<p>Applications A process impurity of Rabeprazole (R070500).<br>References Pingili, R.R., et al.: Pharmazie, 60, 814 (2005),<br></p>

<p>Applications Risperidone 9-Ethylidenecarboxylate Hydrochloride, is the derivative of Risperidone (R525000), which is combined serotonin (5-HT2) and dopamine (D2) receptor antagonist, used for the treatment of schizophrenia, bipolar disorder and behavior problems in people with autism.<br>References Tiberghien, F., et al.: Anticancer Drugs, 7, 568 (1996), Kansy, M., et al.: J. Med. Chem., 41, 1007 (1998), Kerns, E., et al.: J. Pharm. Sci., 90, 1838 (2001), Kerr, K., et al.: J. Biol. Chem., 276, 8657 (2001), Doran, A., et al.: Drug Metab. Dispos., 33, 165 (2005),<br></p>

<p>Applications (E)-Naftifine is an intermediate in synthesizing Naftifine N-Oxide (N213110), which is an impurity or metabolite of Naftifine Hydrochloride (N213100), an allylamine antifungal agent.<br>References Georgopoulos, A., et al.: Antimicrob. Ag. Chemother., 19, 386 (1981); Meingassner, J.C., et al.: J. Invest. Dermatol., 77, 444 (1981); Paltauf, F., et al.: Biochim Biophys. Acta, 712, 268 (1982); Aggarwal, D., et al.: J. Pharm. Pharmacol., 56, 1509 (2004)<br></p>

<p>Applications (2E)-N-[4-[(3-Chloro-4-fluorophenyl)amino]-7-[[(3R)-tetrahydro-3-furanyl]oxy]-6-quinazolinyl]-4-(dimethylamino)-2-butenamide, is an impurity of Afatinib (A355300) an aminocrotonylamino-substituted quinazoline derivative used for treating cancer and diseases of the respiratory tract, lungs, gastrointestinal tract, bile duct, and gallbladder.<br></p>

<p>Applications A potent, selective, orally bioavailable inhibitor of MEK1, a component of the RAS/RAF/MEK/ERK pathway. It inhibits proliferation and stimulates apoptosis in a variety of human tumor cell lines. In preclinical xenograft models, oral administration of XL518 results in sustained inhibition of pERK in tumor tissue, but not brain tissue, leading to tumor growth inhibition and regression at well tolerated doses.<br>References Rosen, L.S. et al.: J. Clin. Oncol., 26, 14585 (2008);<br></p>

<p>Stability Hygroscopic<br>Applications Omeprazole Sodium Salt is the salt analogue of Omeprazole (O635000), which binds covalently to proton pump. It inhibits gastric secretion. Used as an anttiulcerative.<br>References Muller, P., et al.: Arzneimittel-Forsch., 33, 1685 (1983); Wallmark, B., et al.: Biochim. Biophys. Acta., 778, 549 (1984); Morii, M., et al.: J. Biol. chem., 268, 21553 (1993); Ritter, M., et al.: Br. J. Pharmacol., 124, 627 (1998)<br></p>

<p>Applications 1-Adamantan-d15-amine is a labeled NMDA-receptor antagonist. Antiviral; antiparkinsonian.<br>References Vernier, V.G., et al; Toxicol. Appl. Pharmacol., 15, 642 (1969); Kirschbaum, J., et al.: Anal. Profiles Drug Subs., 12, 1 (1983)<br></p>

<p>Stability Hygroscopic<br>Applications A drug used for the treatment of atrial fibrillation and atrial flutter in patients who have suffered cardiac arrhythmias.<br>References Singh, B., et al.: J. Cardiovas. Pharmacol., 52, 300 (2008), Hoy, S., et al.: Drugs, 69, 1647 (2009), Hohnloser, S., et al.: New Eng. J. Med., 360, 668 (2009),<br></p>

<p>Applications A labelled selective 5-HT4 receptor agonist. Gastroprokinetic.<br>References Yoshida, N., et al.: Arch. Int. Pharmacodyn. Ther., 300, 51 (1989), Yatera, S., et al.: Japan. Pharmacol. Ther., 21, 21 (1993), Ruth, M., et al.: Aliment Pharmacol. Ther., 12, 35 (1998),<br></p>

<p>Applications Desmethyl Nintedanib Carboxylic Acid is an impurity of Intedanib (I666650), which is an indolinone derivative potently blocking VEGF-, PDGF-, and FGF-receptor kinases. it is an indolinone as triple angiokinase inhibitors and an antitumor agent.<br>References Sun, L., et al.: J. Med. Chem., 41, 2588 (1998); Xie, H., et al.: J. Med. Chem., 50, 4898 (2007); Hilberg, F., et al.: Cancer Res., 68, 4774 (2008); Roth, G., et al.: J. Med. Chem., 58, 1053 (2015)<br></p>

<p>Stability Air Sensitive, Moisture Sensitive<br>Applications 3-Hexyl Chloroformate is a potential impurity in the synthesis of Dabigatran Etexilate Mesylate (D100150); a nonpeptide and direct thrombin inhibitor. Antithrombotic.<br>References Zheng, Y., et al.: Org. Process Res. Dev., 18, 744 (2014); Hauel, N., et al.: J. Med. Chem., 45, 1757 (2002); Mungall, D., et al.: Curr. Opin. Invest. Drugs, 3, 095 (2002); Stangier, J., et al.: J. Clin. Pharmacol., 45, 555 (2005)<br></p>

<p>Applications 7,8,9,10-Tetrahydro-8-(trifluoroacetyl)-6,10-methano-6H-pyrazino[2,3-h][3]benzazepine is used to prepare varenicline, which is a smoking cessation. It is a Varenicline protected impurity.<br>References Coe, J., et al.: J. Med. Chem., 48, 3474 (2005) ;<br></p>

<p>Applications N-[1-(4-Chlorophenyl)cyclobutylmethyl]-N,N-dimethylamine Hydrochloride is an impurity of Sibutramine Hydrochloride (S422500), a serotonin and noradrenaline reuptake inhibitor.<br>References Hanotin, C., et al.: Int. J. Obesity, 22, 32 (1998)<br></p>

<p>Applications A metabolite of Dipyridamole.<br>References Zak, S.B., et al.: J. Pharmacol. Exp. Ther., 141, 392 (1963),<br></p>

<p>Applications Olmesartan intermediate.<br>References Yanagisawa, H., et al.: J. Med. Chem., 39, 323 (1996),<br></p>

<p>Applications A metabolite of Prochlorperazine.<br>References Finn, A., et al.: J. Clin. Pharmacol., 45, 1383 (2005),<br></p>

<p>Applications An enantiomer of Tolvaptan. It is a selective, competitive arginine vasopressin V2 receptor antagonist used to treat hyponatremia (low blood sodium levels) associated with congestive heart failure, cirrhosis, and the syndrome of inappropriate antidiuretic hormone (SIADH).<br>References Paterna, S., et al.: Eur. J. Heart Fail, 2, 305 (2000), Udelson, J., et al.: Circulation, 104, 2417 (2001), Goldsmith, S., et al.: J. Am. Coll Cardiol., 46, 1785 (2005), Schrier, R., et al.: N. Engl. J. Med., 355, 2099 (2006),<br></p>

<p>Applications 3-(4-Phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine is a useful synthetic intermediate in the synthesis of Ibrutinib (I124970); a highly selective Bruton’s tyrosine kinase (BTK) irreversible inhibitor.<br>References MacGlashan, D., et. al.: Int. Immunol., 11, 475 (2011); Li, X., et al.: J. Med. Chem., 58, 9625 (2015)<br></p>

<p>Applications Isotope labelled Sitagliptin (S491000) intermediate. A dipeptidyl peptidase-4 inhibitor and an anti-hypertensive agent for the treatment of diabetes and hypertension.<br>References Kim, D., et al.: J. Med. Chem. 48, 141 (2005), Ahren, B., et al.: Eur. J. Pharmacol. 521 164 (2005), Bergman, A., et al: Clin. Ther. 28, 55 (2006)<br></p>

<p>Applications 5-(4-methylphenyl)imidazolidine-2,4-dione (cas# 69489-37-8) is a useful research chemical.<br></p>

<p>Applications Dacomitinib is an Erb-inhibitor, or an inhibitor of the members of the epidermal growth factor receptor family. Used as an ant-cancer agent due to observation of over-expressed epidermal growth factor receptor in nearly all cases of squamous cell carcinoma in the head and neck.<br>References Williams, J. et al.: PLoS., 9, e98557 (2014); Peters, S. et al.: Canc. Treatment Rev., 40, 917 (2014);<br></p>

<p>Applications An intermediate in the preparation of Carbamazepine metabolites.<br>References Heckendorn, R., et al.: Helv. Chimica Acta, 70, 1955 (1987),<br></p>

<p>Impurity Rabeprazole EP Impurity C<br>Applications 1-(1H-Benzo[d]imidazol-2-yl)-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid (&gt;75%) (Rabeprazole EP Impurity C) is a Rabeprazole (R070500) impurity. A degradation product formed in stressed tablets of Rabeprazole sodium.<br>References Kommanaboyina, B., et al.: Drug Dev. Ind. Pharm., 25, 857 (1999), Carswel, C., et al.: Drugs, 61, 2327 (2001), Garcia, C., et al.: J. Pharm. Biomed. Anal., 46, 88 (2008),<br></p>

<p>Applications Solifenacin (S676700) metabolite.<br></p>

<p>Stability Very Hygroscopic<br>Applications Labelled Plerixafor, it is a hematopoietic stem cell (HSC) mobilizer that inhibits the CXCR4 chemokine receptor and blocks binding of its ligand, stromal cell-derived factor-1-α (SDF-1-α). This agent was approved on Dec. 15, 2008, as treatment in combination with granulocyte-colony stimulating factor (G-CSF) to mobilize HSCs to the peripheral blood for collection and subsequent autologous transplantation in patients with non-Hodgkin's lymphoma (NHL) and multiple myeloma (MM).<br>References Xie, T., et al.: Science, 290, 328 (2000), Leone, D., et al.: J. Pharmacol. Exp. Ther., 305, 1150 (2003), Chigaev, A., et al.: J. Immunol. 178, 6828 (2007), Kiel, M., et al.: Cell Stem Cell, 1, 204 (2007),<br></p>

<p>Applications 2-Chloro-1,1,1-trimethoxyethanen is a reactant in the synthesis of α-chloro-β-aminosulfinyl imidates as chiral building blocks<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Col0paert, F., et. al.: J. Org. Chem., 76, 2204 (2011)<br></p>

<p>Impurity CP-690550 Impurity<br>Applications CP-690550 N-Hydroxyl is an impurity of CP-690550 (C781350), a pyrrolo[2,3-d]pyrimidine derivative, as Janus kinase inhibitor for treatment of rheumatoid arthritis.<br>References Sheiner, L., et al.: Clin. Pharmacol. Ther., 25, 358 (1979); Dayneka, N., et al.: J. Pharmacokin. Biopharm., 21, 457 (1993); Changelian, P., et al.: Science, 302, 875 (2003); Lee, H., et al.: Clin. Pharmacol. Ther., 73, 348 (2003); Hutmacher, M., et al.: J. Clin. Pharmacol., 47, 238 (2007)<br></p>

<p>Applications 2,2'-((6,6'-(2,4-Di(pyridin-2-yl)cyclobutane-1,3-diyl)bis(1H-indazole-6,3-diyl))bis(sulfanediyl))bis(N-methylbenzamide) is an impurity of Axitinib (A794650), a tyrosine kinase inhibitor. Axitinib is used in cancer therapy.<br>References Wasser, K., et al.: Eur. Radiol., 13, 80 (2003), Park, J., et al.: Clin. Cancer Res., 8, 1172 (2002), Bergers, G., et al.: J. Clin. Invest., 111, 1287 (2003),<br></p>

<p>Applications 4-Fluoro-2-(hydroxymethyl)phenylboronic Acid is a compound used in the preparation of 4,5-dihydro-1H-pyrazole derivatives as cholesterol 24 hydroxylase inhibitors.<br>References Kaku, T., et al.: Preparation of 4,5-dihydro-1H-pyrazole derivatives as cholesterol 24 hydroxylase inhibitors, WO 2010110400 (2010);<br></p>

<p>Applications Intermediate in the production of Ramelteon.<br>References Uchikawa, O., et al.: J. Med. Chem., 45, 4222 (2002),<br></p>

<p>Applications A labelled fluorinated quinolone antibacterial. An enantiomer of Levofloxacin (L360000).<br>References Hwangbo, H.J. et al.: Eur. J. Pharmac. Sci., 18, 197 (203); Gascon, A.R. et al.: J. Clin. Pharmacol, 40, 869 (2000); Monk, J.P., et al.: Drugs, 33, 346 (1987); Drlica, K., Curr. Opin. Microbiol. 2, 504 (1990);<br></p>

<p>Applications Azilsartan Imidazole Carbonyl Dioxolene Ester is an impurity of Azilsartan (A926900), an analgesic and antiinflammatory drugs containing angiotensin II antagonists.<br>References Kohara, Y., et al.: J. Med. Chem., 39, 5228 (1996), Plomgaard, P., et al.: Diabetes, 54, 2939 (2005), Fenton, C., et al.: Drugs, 2005, 65, 537,<br></p>

<p>Applications An impurity of Fingolimod (F805000, HCl salt), a novel immune modulator that prolongs allograft transplant survival in numberour models by inhibiting lymphocyte emigration from lymphoid organs.<br>References Brinkmann, V., et al.: Transplantation, 72, 764 (2001), Brinkmann, et al.: J. Biol. Chem., 277, 24, 21453 (2002), Mtaloubian, M., et al.: Nature, 427, 355 (2004),<br></p>

<p>Impurity Bicalutamide USP Related Compound A<br>Applications Bicalutamide Sulfoxide is a derivative of Bicalutamide (B382000), non-steroidal peripherally active antiandrogen. Used as an antiandrogen, antineoplastic (hormonal).<br>References Tucker, H., et al.: J. Med. Chem., 31, 954 (1988), Cockshott, I.D., et al.: Eur. Urol., 18, Suppl. 3, 10 (1990), Cockshott, I., et al.: Br. J. Clin. Pharm., 36, 339 (1993), McKillop, D., et al.: Xenobiotica, 25, 623 (1995),<br></p>

<p>Applications 2-(3,4-Dimethylphenyl)-1,2-dihydro-5-methyl-3H-pyrazol-3-one, is an impurity of Eltrombopag (E508000), which is agonist of the Thrombopoietin (Tpo) receptor, used as treatment for thrombocytopenia.<br>References Bussel, J., et al.: New Eng. J. Med., 357, 2237 (2007), Marsilje, T., et al.: Bioorg. Med. Chem. Lett., 18, 5259 (2008), Alper, P., et al.: Bioorg. Med. Chem. Lett., 18, 5255 (2008),<br></p>

<p>Stability -20°C Freezer<br>Applications Ebastine N-Oxide is an impurity of Ebastine (E320000). Ebastine impurity F and G (mixture of cis/trans).<br>References Yardley, J., et al.: J. Med. Chem., 33, 2899 (1990), Johnson, R., et al.: J. Antibiot., 49, 788 (1996), Takekawa, K., et al.: Xenobiotica, 31, 11 (2001), Chen, Z., et al.: Bioorg. Med. Chem. Lett., 14, 5275 (2004),<br></p>

<p>Stability Hygroscopic<br>Applications Fenspiride N-Oxide is an impurity of Fenspiride (F265000),an bronchodilator with anti-inflammatory properties. Inhibits mucus secretion and reduces the release of tachykinins at a prejunctional level by its anti-muscarinic action.<br>References Arnone, A., et al.: Tetrahedron., 54, 7831 (1998);<br></p>

<p>Impurity Tadalafil EP Impurity A N-Desmethyl Impurity<br>Applications (6R,12aS)-N-Desmethyl Tadalafil (Tadalafil EP Impurity A N-Desmethyl Impurity) is an intermediate in the synthesis of novel potent arylated analogues of tadalafil (T004500).<br>References Beghyn, T., et al.: Bioorg. Med. Chem. Lett., 17, 789 (2007);<br></p>

<p>Applications A hydroxylated labelled metabolite of Iloperidone (I267200).<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Mutlib, A., et al.: Drug Metab. Dispos., 23, 951 (1995), Westerink, B., et al.: Eur. J. Pharmacol., 412, 127 (2001),<br></p>

<p>Applications Palbociclib (also known as compound number PD-0332991) is an experimental drug for the treatment of breast cancer being developed by Pfizer. It is a selective inhibitor of the cyclin-dependent kinases CDK4 and CDK6.<br>References Finn, R., et al.: Breast Cancer Res., 11, 5 (2009);<br></p>

<p>Applications D-phenylanaline derivative and an analog Nateglinide (N379375) with similar hypoglycemic activity.<br>References Shinkai, H. et al.: J. Med. Chem., 32, 1436 (1989);<br></p>

<p>Applications A metabolite of Ramelteon (R110051)<br></p>

<p>Impurity Ritonavir EP Impurity F<br>Applications Des(isopropylthiazolyl) Hydantoin Ritonavir (Ritonavir EP Impurity F) is a Ritonavir (R535000) derivative with potential use in the treatment of viral infections. Cytochrome P450 oxidase inhibitor. It is a COVID19-related research product.<br>References Daluge, S., et al.: Antimicrob. Agents Chemother., 38, 1590 (1994); Ammaranond, P., et al.: J. Clin. Virol., 26, 153 (2003);<br></p>

<p>Stability Air Sensitive<br>Applications 3-(5-Methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)benzenamine is used in the preparation of c-Src and Abl inhibitors based on the scaffold present in Imatinib (G407000), used in the treatment of myelogenic leukemia. It is a COVID19-related research product.<br>References Seeliger, M. et al.: Canc. Res., 69, 2384 (2009); Schindler, T., et al.: Science, 289, 1938 (2000); Drucker, B.J., et al.: N. Engl. J. Med., 344, 1031 (2001)<br></p>

<p>Impurity Ambrisentan Hydroxyester Impurity<br>Applications (S)-α-Hydroxy-β-methoxy-β-phenyl-benzenepropanoic Acid Methyl Ester is an impurity in the synthesis of Ambrisentan (A575860), a nonpeptide endothelin ETA receptor antagonist. Antihypertensive. (Ambrisentan Hydroxyester Impurity)<br>References Riechers, H., et al.: J. Med. Chem., 39, 2123 (1996), Billman, G.E., et al.: Curr. Opin. Invest. Drugs, 3, 1483 (2002), Vatter, H., et al.: Clin. Neuropharmacol., 26, 73 (2003),<br></p>

<p>Applications m-Salicylic Acid is widely used in organic synthesis. It is also an important active metabolite of aspirin (A187780).<br>References Haynes, M., et al.: CRC H.b Chem. Phys., 92, 306 (2011)<br></p>

<p>Applications Brivaracetam-d7 (Mixture of Diastereomers), is a mixture of 2 diastereomers of Brivaracetam-d7 (B677647), and a labeled analogue of Brivaracetam (B677645), 4-n-propyl analog of levetiracetam (L331500), and a racetam derivative with anticonvulsant properties.<br>References Rosenstiel, P., et al.:Neurotherapeutics, 4 (1), 84 (2007); Malawska, B., et al.:, Curr. Opin. Investig. Drugs, 6(7), 740 (2005);<br></p>

<p>Applications A D2/D4-Dopamine receptor antagonist. A serotonergic receptor antagonist. A dibenzoxazepine antipsychotic agent.<br>References Shen, Y., et al.: J. Biol. Chem., 268, 18200 (1993), Fiorella, D., et al.: Psychopharmacology, 121, 347 (1995), Glusa, E., et al.: Br. J. Pharmacol., 130, 692 (2000)<br></p>

<p>Impurity Paliperidone USP Related Compound D<br>Applications One of the major degradation product of Risperidone in bulk drug and pharmaceutical dosage forms. Paliperidone USP Related Compound D.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Leysen, J., et al.: J. Pharmacol. Exp. Ther., 247, 661 (1988), Huang, M., et al.: Pharm. Drug Dispos., 54, 257 (1993), Smyth, W., et al.: Anal. Bioanal. Chem., 378, 1305 (2004),<br></p>

<p>Impurity Vigabatrin USP Related Compound A<br>Applications Vigabatrin (V253000) impurity. Vigabatrin USP Related Compound A.<br>References Durham, S. et al.: Drug Metab. Dispos. 21, 480 (1993).<br></p>

<p>Impurity Rivastigmine EP Impurity B<br>Applications N-Desethyl N-Methyl Rivastigmine (Rivastigmine EP Impurity B) is an impurity of Rivastigmine (R541000), a brain selective acetylcholinesterase inhibitor. Nootropic.<br>References Rosler, M., et al.: Brit. Med. J., 318, 633 (1999), Enz, A., et al.: Prog. Brain Res., 98, 431 (1993),<br></p>