Toxicología

<p>Applications Albendazole Sulfoxide-d7 is the isotope labelled metabolite of Albendazole (A511620), an anthelmintic agent.<br>References Dominguez, L., et al.: Farmaco, 50, 697 (1995), De Laurentis, N., et al.: Pharm. Pharmacol Lett., 6, 2: 51 (1996)<br></p>

<p>Applications N-(Carboxymethyl)amphetamine Hydrochloride is a synthetic amphetamine-class analyte with potential pharmaceutical properties.<br>References Seiler, N. et al.: Tetrahedron Lett., 38, 4603 (1966);<br></p>

<p>Stability Hygroscopic<br>Applications Isotope labelled 1,6-Anhydro-β-D-glucopyranose (A648100), an compound that have been proven to be a valuable synthon for the preparation of various biologically important and structurally diverse products (e.g. rifamycin S, indanomycin, thromboxane B2, (+)-biotin, tetrodotoxin, quinone, and macrolide antibiotics) as well as for modified sugars.<br>References Fraser-Reid, B., et al. J. Am. Chem. Soc. 106, 731 (1984); Edwards, M.P., et al. J. Org. Chem. 49, 3503 (1984); Kelly, A.G., and Roberts, J.S. J. Chem. Soc., Chem. Commun. 228, (1980); Ogawa, T., et al. Carbohydr. Res. 57, C31 (1977); Isobe, M., et al. Tetrahedron Lett. 28, 6485 (1987);<br></p>

<p>Applications Roscovitine is a potent and selective inhibitor of cyclin-dependent kinases (CDKs). Roscovitine has been found to produce apoptosis in treated cancerous cells of non-small cell lung cancer (NSCLC) and other cancers. Studies show that Roscovitine displays increased anti-mitotic activity at the G1/S and G2/M phases of the cell cycle. Roscovitine maybe useful in the treatment of non-small cell lung cancer (NSCLC), leukemia, HIV infection, herpes simplex infection, and the mechanisms of chronic inflammation disorders.<br>References De Azevedo, W.F. et al.: Eur. J. Biochem., 43, 518 (1997); Planchais, S. et al.: Plant J., 12, 191 (1997); Mgbonyebi O.P. et al.: Anticancer Res., 18, 751 (1998); MacCallum, D.E. et al.: Cancer Res., 65, 5399 (2005);<br></p>

<p>Applications Perindoprilat-d4 is the isotope labelled analog of Perindoprilat (P287531); an angiotensin-converting enzyme (ACE) inhibitor and antihypertensive.<br>References Pascard, C., et al.: J. Med. Chem., 34, 663 (1991)<br></p>

<p>Stability Hygroscopic<br>Applications A new analgesic.<br>References de Julian-Ortiz, J., et al.: J. Med. Chem., 42, 3308 (1999), Roy, K., et al.: Bioorg. Med. Chem., 12, 745 (2004), Garcia-Garcia, A., et al.: J. Antimicrob. Chemother., 53, 65 (2004),<br></p>

<p>Applications 1-Decanol is a long chain alcohol that has been seen to enhance homomeric glycine receptor function. In addition, the 5HT2α receptors were inhibited by the presence of 1-decanol. This action has many psychological repercussions on an individual.<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 Mascia, M. et al.: Brit. J. Pharm., 119, 1311 (1996); Minami, K. et al.: J. Pharm. Exp. Ther., 281, 1136 (1997);<br></p>

<p>Applications Aclonifen-d5, is the labeled analogue of Aclonifen, which is used as a pesticide and herbicide.<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 Laini, A., et al.: Sci. Total Environ., 438, 312 (2012); Fantke, P., et al.: Enviorn. Int., 49, 9 (2012);<br></p>

<p>Stability Hygroscopic<br>Applications Pancratistatin acts as an anti-cancer compound that initiates cell-death in cancer cells.<br>References McLachlan, A. et al.: Apoptosis, 10, 619 (2005);<br></p>

<p>Applications Clopidogrel derivative. It is used as internal standard.This compound is a single pair of enantiomers but the relative stereochemistry is unknown.<br>References Savi, P., et al.: Biochem. Pharmacol., 44, 527 (1992), Pereillo, J., et al.: Drug Metab. Dispos., 30, 1288 (2002), Ksycinska, H., et al.: J. Pharm. Biomed. Anal., 41, 533 (2006), Farid, N., et al.: Clin. Pharmacol. Ther., 81, 735 (2007),<br></p>

<p>Applications Deuterated Mycopheolate Mofetil, an immunosuppressant.<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 Lee, W.A., et al.: Pharm. Res., 7, 161 (1990), Bullingham, R.E.S., et al.: Transplant. Proc., 28, 925 (1996), Keown, P.A., et al.: Transplantation, 61, 1029 (1996),<br></p>

<p>Applications Darunavir intermediate, a potent inhibitor of HIV-1 protease.<br>References Debouck, C., et al.: Drug Dev. Res., 21, 1 (1990), Krohn, A., et al.: J. Med. Chem., 34, 3340 (1991), Sham, H., et al.: Antimicrob. Agents Chemother., 42, 3218 (1998),<br></p>

<p>Applications Labelled Piracetam (P500800). Nootropic.<br>References Gobert, J., et al.: J. Pharm. Belg., 27, 281 (1972), Oosterveld, W.J., et al.: Arzneim.-Forsch., 30, 1947 (1980), Chouinard, G., et al.: Psychopharmacol. Bull., 17, 129 (1981),<br></p>

<p>Stability Hygroscopic<br>Applications A bacteriostatic antibiotic with similar activity and better absorption after oral administration (in animals) than the sodium salt of Fusidic Acid (F865500). Inhibits protein synthesis in prokaryotes by inhibiting the ribosome-dependent activity of G factor and translocation of peptidyl-tRNA.<br>References Findon, G. et al.: Lab. Anim. Sci., 41, 462 (1991); Parsons, R.L. et al.: Curr. Chemother. Proc. Int. Cong. Chemother., 10, 384 (1978);<br></p>

<p>Applications A metabolite of Ofloxacin.<br>References Uematsu, T., et al.: Eur. J. Clin. Pharmacol., 40, 581 (1991), Uematsu, T., et al.: Ther. Drug Monit., 17, 101 (1995), Ballesteros, O., et al.: J. Pharm. Biomed. Anal., 30, 1103 (2002), Kitade, T., et al.: Chem. Pharm. Bull., 51, 53 (2003),<br></p>

<p>Stability Hygroscopic<br>Applications Oseltamivir 5-Desamino 5-(2-Formyl 5-Hydroxymethylpyrrol-1-yl) is derived from Oseltamivir Phosphate (O701000), which is an orally active inhibitor of influenza virus neuraminidase; converted in vivo to the active acid metabolite. An antiviral drug. It is a COVID19-related research product.<br>References Oliyai, R., et al.: Pharm. Res., 15, 1300 (1998), Kim, C.U., et al.: Med. Chem. Res., 8, 392 (1998), Hayden, F.G., et al.: N. Engl. J. Med., 341, 1336 (1999), Treanor, J.J., et al.: J. Am. Med. Assoc., 283, 1016 (2000)<br></p>

<p>Stability Unstable in Solution<br>Applications Iodosulfuron is a weed management herbicide used in crop protection.<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 Bro, E. et al.: Sci. Total Env., 521, 315 (2015); Gandy, M. et al.: Org. Biomol. Chem., 13, 5586 (2015);<br></p>

<p>Stability Hygroscopic<br>Applications Pizotifen Malate is an anti migraine drug.<br>References Serna-Jimenez. et al.,Int. J. Pharm. 492, 223-232(2015);<br></p>

<p>Applications Flutriafol is a systemic fungicide of the triazole class. Flutriafol has broad spectrum fungicidal activity and is used to control effectively cereal powdery mildew, cloud disease, leaf spot disease and rust disease.<br>References Gozzo, F. et al.: Pest. Biochem. Physiol., 40, 68 (1991); Cao, W. et al.: Jing. Huag. Zhong., 36, 33 (2006); Evans, V.J. et al.: BCPC Conf. Pests Dis., 1, 511 (2000);<br></p>

<p>Stability Hygroscopic<br>Applications N,N-Diethyltryptamine Hydrochloride is a derivative of Tryptamine (T894600). Tryptamine is a monoamine alkaloid found in plants and is commonly used in the preparation of biologically active compounds such as neurotransmitters and psychedelics.<br></p>

<p>Applications Flometoquin is a pesticide. It is also used in other insecticidal compositions containing flometoquin and anabasine as active ingredients. An agrochemical compound.<br>References Anon.: Fain Kemikaru, 41, 34 (2012); Anon.: IP.com J., 12, 19 (2011); Ren, T., et al.: From Faming Zhuanli Shenqing (2014), CN 103814939 A 20140528; Jeanmart, S., et al.: Bioorg. Med. Chem., 24, 317 (2016)<br></p>

<p>Applications 2,3,4-Trihydroxybenzophenone-2’,3’,4’,5’,6’-d5 is the isotope labelled analog of 2,3,4-Trihydroxybenzophenone; a trihydroxy derivative of Benzophenone (B204980) which is a compound used in the manufacturing of antihistamines, hypnotics, and insecticides.<br>References Wallace, W., et al.: Environ. Toxicol. Chem., 19, 962 (2000); Hayashi, T., et al.: Toxicol. Lett., 167, 1 (2006); Bechard, K., et al.: Aquat. Toxicol., 90, 310 (2008)<br></p>

<p>Applications Testosterone Enanthate is a derivative of testosterone (T155000), the principal hormone of the testes, produced by the interstitial cells.<br>References Janjic, M.M., et al.: Reproduct. Toxicol., 34, 686 (2012); Lacreuse, A., et al.: Physiol. Behaviour., 106, 229 (2012);<br></p>

<p>Applications 2-Hydroxy-6-trifluoromethylpyridine<br></p>

<p>Applications L-Anserine (cas# 584-85-0) is a useful research chemical.<br></p>

<p>Applications Potent inhibitor of Phosphatidylinositol 3-kinase (PI3K)<br></p>

<p>Stability Hygroscopic<br>Applications Deuterated, Memantine (M218000) which is used as an antiparkinsonian and antispasmodic.<br>References Rohde, H., et al.: Fortschr. Med., 100, 2023 (1982), Kornhuber, J., et al.: Eur. J. Pharmacol., 166, 589 (1989), Gortelmeyer, R. and Erbler, H.: Arzneimittel-Forsch., 42, 904 (1992)<br></p>

<p>Applications An intermediate of Indapamide (I500100), as bactericide, disinfectant, and antiseptic.<br>References Kumar, P., et al.: Arch. Pharma., 316, 759 (1983), Rival, Y., et al.: Eur. J. Med. Chem., 26, 13 (1991),<br></p>

<p>Applications Ginsenoside Rh4 possesses inhibitory and antifungal activity.<br>References Xue, P., et al: RSC Adv., 7, 10939-10946 (2017)<br></p>

<p>Applications Labelled Azithromycin, a semi-synthetic macrolide antibiotic; related to Erythromycin A. Antibacterial.<br>References Langtry, H.D., et al.: Drugs, 56, 273 (1998),<br></p>

<p>Applications Piroctone Olamine is an anti-dandruff agent used in shampoo formulations.<br>References Georgalas, A. et al.: J. Cosm. Sci., 55, S207 (2004); Mayser, P. et al.: J. Cosm. Sci., 54, 263 (2008);<br></p>

<p>Applications Niclosamide is used as an anthelmintic drug (Cestodes).<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 Loftsson, T., et al.: J. Pharm. Sci., 85, 1017 (1996), Malik, N., et al.: Anti. Cancer Drugs, 10, 767 (1999), El-Sayed, M., et al.: Pharm. Res., 18, 23 (2001),<br></p>

<p>Applications An organophosphate pesticide that is an inhibitor of acetylcholinesterase (AChE).<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 Yan, D. et al.: Zhong. Huan. Kex., 26, 364 (2006); Wood, S.J. et al.: Pest. Sci., 32, 485 (1991);<br></p>

<p>Applications A red Cy3-based biarsenical fluorescent probe targeted to a complementary binding peptide. AsCy3 has good photostability, low pH sensitivity, high absorbance, and good quantum yield. This new probe provides a FRET partner to biarsenical dye FlAsH, making this discovery an important step toward a whole toolkit of colored probes directed to different small peptide motifs.<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 Cao, H., et al.: J. Am. Chem. Soc., 129, 8672 (2007)<br></p>

<p>Applications 4-Chlorosalicylic Acid is a metabolite of the herbicide Benthiocarb. 4-Chlorosalicylic Acid shows antifungal activity.<br>References Nakamura, Y. et al.: Agric. Biol. Chem., 41, 1613 (1977); Patel, H.S. et al.: J. Macromol. Sci. Chem., A20, 453 (1983); Amborabe, B.-E. et al.: Plant Physiol. Biochem., 40, 1051 (2002);<br></p>

<p>Applications 3,5-Dimethyl-4-(methylthio)phenol is used as an insecticide and used the synthesis of methiocarb.<br>References Yamada, K. et al.: J. Health Sci., 57, 134 (2011); Keum, Y. et al.: Chromatograph., 52, 237 (2000);<br></p>

<p>Applications Promecarb-d3 is the isotope labelled analog of Promecarb (P756500); a carbamate pesticide.<br>References Knowles, C.O., et al.: B. Environ. Contam. Tox., 27, 529 (1981); Pacioni, N.L., et al.: Anal. Chim. Acta, 583, 63 (2007); Sanchez, F.G., et al.: Analyst, 116, 851 (1991)<br></p>

<p>Applications A coumarin (C755380) derivative classified as an anticoagulant.<br>References Neau, J. et al.: Cereb. Dis., 11, 195 (2001); Boschetti, E. et al.: Chim. Ther., 7, 20 (1972);<br></p>

<p>Applications 2-Chlorobenzonitrile is an activated aryl chloride that is commonly used in reactions that involve the Palladium-catalyzed direct arylation of heteroaromatics (e.g. 3-aminopicolinic acid [A627800]). 2-Chlorobenzonitrile and its substituted derivatives (e.g. 2,3-dichloro-6-nitrobenzonitrile [2112-22-3]) also have potential anti-inflammatory properties.<br>References Andreu, M., et al.: Chem. Commun., 24, 2475 (2000); Hellman, W., et al.: J. Med. Chem., 21, 906 (1978); Roy, D., et al.: ACS Catal., 2, 1033 (2012);<br></p>

<p>Applications Cefotaxime Bromoacetyl Analogue is an impurity of Cefotaxime (C242950), a broad spectrum third generation cephalosporin antibiotic<br>References Wise, R., et al.: Antimicrob. Agents Chemother., 14, 807 (1978), Muhtadi, F.J., et al.: Anal. Profiles Drug Subs., 11, 139 (1982),<br></p>

<p>Applications Heterocyclic inhibitor of the RNA-dependent RNA polymerase enzyme transcribed by the Hepatitis C virus.<br>References Mashino, T., et al.: Bioorg. Med. Chem. Lett., 15, 1107 (2005), Liu, Y., et al.: Biochem., 45, 11312 (2006), Tedesco, R., et al.: J. Med. Chem., 49, 971 (2006),<br></p>

<p>Stability Hygroscopic<br>Applications Myristoyl-L-carnitine-d3 Hydrochloride is labelled Myristoyl-L-carnitine Hydrochloride (M884745), a long-chain fatty ester of carnitine which is accumulated and released into the circulation, in fatty-acid oxidation defects. Pattern of Lauroyl-L-carnitine can be diagnostic for a number of ß-oxidation defects.<br>References Ventura, F., et al.: Clinica Chimica Acta, 281, 1 (1999); Pourfarzam, M., et al.: Clinical Chem,, 40, 2267 (1994); Schaefer, J., et al.: Pediatric Res., 37, 354 (1995)<br></p>

<p>Applications Labelled Clomiphene. Synthetic estrogen agonist-antagonist. Gonad-stimulating principle.<br>References Palopoli, F.P., J. Med. Chem., 10, 84 (1967), Ernst., et al.: J. Pharm. Sci., 65, 148 (1976), Baustian, C.L., et al.: Pharm. Biomed. Anal., 4, 237 (1986),<br></p>

<p>Applications Psychotropic agent with anxiolytic and anticonvulsant activity.<br>References Boissier, J.R., et al.: Therapie, 27, 325 (1972), Bente, D., et al.: Arzneim. Forsch., 25, 944 (1975),<br></p>

<p>Applications A metabolite of Phenanthrene (P294800(P)), which is a polycyclic aromatic hydrocarbon; an environmental pollutant.<br>References Boyland, E., et al.: Biochem. J., 84, 564 (1962); Hamada, S., et al.: Mutat. Res., 495, 127 (2001); Shimada, T., et al.: Drug Metab. Dispos., 29, 1176 (2001); Moennikes, O., et al.: Cancer Res., 64, 4707 (2004); Albig, A., et al.: Mol. Biol. Cell., 16, 609 (2005); Di Toro, D. et al.: Environ. Toxicol. Chem., 19, 1971 (2000); Vines, C. et al.: Aquat. Toxicol., 51, 225 (2000); Incardona, J. et al.: Toxicol. Appl. Pharmacol., 196, 191 (2004); Junghans, M., et al.: Aquat. Toxicol., 76, 93 (2006);<br></p>

<p>Applications An agricultural fungicide. Kresoxim-methyl is also useful in cannabis testing kits as a component of pesticide mixes (P698235).<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 Gold, R.E. et al.: Pestic. Sci., 43, 250 (1995); Creemers, P. et al.: Meded. Fac. Landbouwwet. Univ. Gent, 61, 431 (1996); Gold, R.E. et al: Mod. Fungic. Antifungal Compd., 11, 79 (1996);<br></p>

<p>Stability Hygroscopic<br>Applications Meclocycline is a tetracycline antibiotic that is topically used for skin infections and irritations.<br>References Gohil, V.M., et al.: Nature. Biotechol., 28, 249 (2010); Paemen, L., et al.: Biochem. Pharmacol., 52, 105 (1996);<br></p>

<p>Applications 4-Hydroxy Coumarin is a plant derived antioxidant, protecting against lipid peroxidation, as well as a potential inhibitor of HIV-1 Integrase.<br>References Foti, M. et al.: J. Agric. F., 44, 497 (1996); J. Med. Chem., 40, 242 (1997);<br></p>

<p>Stability Light Sensitive<br>Applications A novel pharmaceutical compound based on PDE IV inhibitors; used in the treatment of respiratory complaints.<br>References Gomez, et al.: Br. J. Anaesth., 74, 549 (1995),<br></p>

<p>Applications Labelled insecticidal, acaricidal, and fungicidal combinations of carboxamides and other pesticides.<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 Dugo, G., et al.: Food Chem., 16, 435 (2005), Caldas, E., et al.: Toxicology, 222, 132 (2006), Cabras, P., et al.: J. Agric. Food Chem., 45, 2244 (1997), Wilkinson, C., et al.: Regul. Toxicol. Pharmacol., 31, 30 (2000),<br></p>

<p>Stability Light Sensitive, Temperature Sensitive<br>Applications An antineoplastic.<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 Mathe, G., et al.: Cancer Letters, 27, 285 (1985), Levegue, D., et al.: Clin. Pharmacokinet., 31, 184 (1996), Curran, M.P., et al.: Drugs Aging., 19, 695 (2002),<br></p>

<p>Applications 24R,25-Dihydroxy Fusidic Acid δ-Valerolactone is a saturated A-ring steroid impurity of 24,25-Dihydroxy Fusidic Acid (D452840).<br></p>

<p>Applications Anxiolytic. Controlled substance (depressant).<br>References Cone, E., et al.: J. Pharm. Sci., 73, 243 (1984), Maurer, H., et al.: J. Anal. Toxicol., 25, 237 (2001), Beyer, J., et al.: Ther. Drug Monit., 27, 151 (2005),<br></p>

<p>Applications Itraconazole-d9, is the labeled analogue of Itraconazole (I937500, an orally active antimycotic structurally related to Ketoconazole. Antifungal. It is a COVID19-related research product.<br>References Espinel-Ingroff, A., et al.: Antimicrob. Agents Chemother., 26, 5 (1984), Heykants, J., et al.: Mycoses, 32, Suppl 1, 67 (1989), Sugar, A.M., et al.: Curr. Clin. Top. Infect. Dis., 13, 74 (1993),<br></p>

<p>Applications Flumetsulam is a ighly active herbicide of the triazolopyrimidine sulfonanilide class. Flumetsulam act by inhibiting acetolactate synthase. Flumetsulam exhibits broad spectrum activity on broadleaf weed species with selectivity to several major agronomic crops in soil and foliar applications.<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 Kleschick, W.A. et al.: J. Agric. Food Chem., 40, 1083 (1992); Frear, D.S. et al.: Pest. Biochem. Physiol., 45, 178 (1993); Webster, E.P. et al.: Weed Sci., 49, 652 (2001);<br></p>

<p>Applications (3R)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid is an intermediate in the synthesis of Ofloxacin (O245750), an fluorinated quinolone based antibacterial agent.<br>References Mitscher, L. A., et la.: J. Med. Chem., 30, 2283 (1987);<br></p>

<p>Applications α-Endosulfan is the alpha isomer of Endosulfan (E555505), an insecticide that poses health risks to humans and animals that acquire it through ingension, inhalation, and percutaneous contact. One of the new POPs under the Stockholm Convention. Useful in cannabis testing kits as a component of pesticide mixes (P698230).<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 Bhalerao, T. &amp; Puranik, P.: Int. Biodeter. Biodegr., 59, 315 (2007); Kalender, S., et al.: Toxicology, 202, 227 (2004); Naqvi, S. &amp; Vaishnavi, C.: Comp. Biochem. Phys. C, 105, 347 (1993)<br></p>

<p>Applications 2,4,6-Trichlorophenol-13C6 is the labelled anaolgue of 2,4,6-Trichlorophenol which is used as a broad range pesticide against insects, fungi, vegetation and bacteria. It has become a common environmental contaminant and probable human carcinogen.<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 Nunes, C., et al.: J. Env. Biol., 29, 733 (2008), Carucci, A., et al.: Water Sci. Technol., 58, 309 (2008), Fu, W., et al.: Env., Toxicol., Chem., 28, 1372 (2009), Osborne, R., et al.: Biochem., 48, 4231 (2009), Campoy, S., et al.: Env. Microbiol., 11, 99 (2009),<br></p>

<p>Stability Light Sensitive<br>Applications An impurity of Minocycline (M344800). Used in the preparation of calpain inhibitors.<br>References Sokoloski, T.D., et al.: J. Pharm. Sci., 66, 1159 (1977), Naidong, W., et al.: J. Pharm. Biomed. Anal., 13, 905 (1995),<br></p>

<p>Applications Sulfacetamide-d4 is the isotope labelled analog of Sulfacetamide. Sulfacetamide is an antibiotic used for the treatment of skin infections and urinary tract infections. Sulfacetamide is also used to treat acne and seborrheic dermatitis. Sulfacetamide was investigated for potential anti-inflammatory properties<br>References Wittwer, M.B., et al.: J. Med. Chem., 56, 781 (2013); Wang. X., et al.: Afr. J. Micriobiol., 6, 4533 (2012); Yu, B., et al.: Euro. J. Med. Chem., 46, 5833 (2011);<br></p>

<p>Applications 3-Chloroacetanilide is a major metabolite of chlorpropham. An acetanilide herbicide derivative.<br>References Carrera, G., et al.: Arch. Environ. Cont. Tox., 35, 89 (1998); Freitas, M. R., et al.: Bull. Environ. Contam. Toxicol., 92, 143 (2014)<br></p>

<p>Stability Hygroscopic<br>Applications An amino alcohol metabolite of nicotine, and precursor to NNK.<br></p>

<p>Applications N-Desmethyl Regorafenib (Pyridine)-N-oxide-d3 is the isotope labelled analog of N-Desmethyl Regorafenib (Pyridine)-N-oxide (D293280); a synthetic metabolite of Regorafenib (R143000) used for treatment and prevention of cancer.<br>References Wilhelm, S.: PCT Int. Appl. WO 2011130728 A1 20111020. Oct 20, 2011<br></p>

<p>Impurity Quetiapine EP Impurity R<br>Applications Fumaric Acid Monoethyl Ester (Quetiapine EP Impurity R) is an anti-psoriatic fumaric acid ester. Fumaric Acid Monoethyl Ester inhibited thymidine-14C incorporation into DNA by cultured human lymphocytes. Fumaric Acid Monoethyl Ester has been shown to evoke transient increase in intracellular free calcium concentration and inhibit proliferation of human keratinocytes.<br>References Hagedorn, M. et al.: Arch. Dermatol. Res., 254, 67 (1975); Thio, H.B. et al.: Br. J. Dermatol., 131, 856 (1994); Rostami-Yazdi, M. Arch. Dermatol. Res., 302, 531 (2010);<br></p>

<p>Stability Hygroscopic<br>Applications Itraconazole N,N-Dioxide is a derivative of Itraconazole (I937500). Itraconazole is an orally active antimycotic structurally related to Ketoconazole. Antifungal. It is a COVID19-related research product.<br>References Espinel-Ingroff, A., et al.: Antimicrob. Agents Chemother., 26, 5 (1984), Heykants, J., et al.: Mycoses, 32, Suppl 1, 67 (1989), Sugar, A.M.,et al.: Curr. Clin. Top. Infect. Dis., 13, 74 (1993),<br></p>

<p>Applications Oxychloroaphine is a simple phenazine with weak antifungal activity.<br></p>

<p>Impurity Ciprofloxacin USP Related Compound A / EP Impurity D<br>Stability Hygroscopic<br>Applications 7-Chloro-1-cyclopropyl-4-oxo-6-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic Acid Hydrochloride is an impurity in the synthesis of Ciprofloxacin (C482500), a fluorinated quinolone antibacterial.<br>References Hoffken, G., et al.: Antimicrob. Ag. Chemother., 27, 375 (1985), Scully, B.E., et al.: Lancet, 1, 819 (1986)<br></p>

<p>Stability Moisture Sensitive<br>Applications Dibutyl 4-Hydroxybutyl Phosphate is derived from 4-Tetrahydropyranyloxy-butan-1-ol (T295445), which is a useful building block. It is also a metabolite of Phosphoric Acid Tributyl Ester (P359445), which is used as a solvent in the solvent-detergent method for production of immunoglobulin for inactivation of viruses with lipid envelope on the model of duck hepatitis B virus. It is also used as a ligand in the extraction of lanthanide ions from solid and liquid materials by supercritical CO2.<br>References Zubkova, N., et al.: Bull. Exp. Biol. Med., 155, 821 (2013); Lin, Y., et al.: Anal. Chem., 66, 1971(1994)<br></p>

<p>Applications Berberine Sulfate is an isoquinoline alkaloid with chemopreventative properties. It is used in the preparation of derivatives showing activity against leishmaniasis and malaria.<br>References Bahar, M. et al.: Bioorg. Med. Chem. Lett., 21, 2606 (2011); Endeshaw, M. et al.: J. Nat. Prod., 76, 311 (2013);<br></p>

<p>Applications Tiropramide is an antispasmodic agent. Studies suggest that Tiropramide has a pure musculotropic smooth muscle relaxant activity. Tiropramide is considered to be useful to inhibit the contractile response of the urinary bladder.<br>References Myung, S.-W. et al.: J. Appl. Pharmacol., 8, 262 (2000); Kwon, O.-S. et al.: Arzneim.-Forsch., 53, 578 (2003); Jhee, O.H. et al.: Clin. Chim. Acta, 366, 179 (2006); Takayanagi, I. et al.: Gen, Pharmacol., 20, 335 (1989);<br></p>

<p>Impurity Cefotaxime Sodium EP Impurity A<br>Stability Hygroscopic<br>Applications Cefetamet is a third-generation cephalosporin antibiotic and the active agent of Cefeamet pivoxil (C242780) after hydrolysis.<br>References Bryson, H.M., et al.: Drugs., 45, 589 (1993); Sharma, R.K., et al.: Asian. J. Biochem. Pharmaceut. Res., 1, 443 (2011); Waters, N.J., et al.: Drug. Metabolism. Disposit., 38, 1159 (2010);<br></p>