Toxicology

<p>Applications Glyphosate-13C,15N is the labelled analogue of Glyphosate (G765000), which is used as a herbicide.<br>References Davis, V., et al.: Weed Sci., 57, 494 (2009), Bellaloui, N., et al.: J. Agric. Food Chem., 57, 9050 (2009),<br></p>

<p>Applications A labelled metabolite of Codeine (C634075). Analgesic (narcotic); antitussive.<br>References Frances, B., et al.: J. Pharm. Exp. Ther., 25, 262 (1992), Osborne, R., et al.: Br. J. Clin. Pharm., 34, 130, (1992),<br></p>

<p>Applications R-(-)-Norapomorphine Hydrochloride-d5 is the isotope labelled analog of R-(-)-Norapomorphine Hydrochloride (N661030); an (R)-Apomorphine (A727500) derivative as inhibitor of amyloid-β (Aβ) fibril formation and their use in amyloidosis based disease.<br>References Howlett, D., et al.: Biochem. J., 340, 283 (1999); Kuner, P., et al.: J. Biol. Chem., 275, 1673 (2000); Ono, K., et al.: J. Neurosci. Res., 75, 742 (2004)<br></p>

<p>Applications Methyl 1,4-Dihydro-4-(2’-trifluoromethyl)phenyl-pyridine-3-carboxylate-5-ethyl Carboxamide (cas# 887407-06-9) is a compound useful in organic synthesis.<br></p>

<p>Applications Protected Paclitaxel metabolite.<br></p>

<p>Applications Spasmoxale is an analgesic.<br>References Deeb, O., et al.: Chem. Biol. Drug. Des., 76, 255 (2010); Mathur, K.C., et al.: Bioorg. Med. Chem., 11, 1915 (2003)<br></p>

<p>Stability Hygroscopic<br>Applications 4-Hydroxybutyryl-L-carnitine Chloride, is an aryl carnitine, which is an important metabolite used as a diagnostic tool for detecting inherited metabolic disorders. Antibodies can be raised against L-carnitine and other carnitine-related compounds to measure the quantity of L-carnitine in biological samples and serum.<br></p>

<p>Applications Labelled Donepezil (D531750). A nootropic. An inhibitor of acetylcholinesterase.<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 Ohnishi, A., et al.: J. Clin. Pharmacol., 33, 1086 (1993), Galli, A., et al.: Eur. J. Pharmacol., 270, 189 (1994)<br></p>

<p>Applications Pyrametostrobin is a novel fungicide. Also, it is derived from 1-Methyl-2-nitrobenzene (N572306), which is a toxic pollutant of the environment because of its large scale use in the production of explosives. It is a useful synthetic intermediate. It shows carcinogenic activity in rats.<br>References Huang, C., et al.: J. Sep., 40, 2335-2343 (2017)<br></p>

<p>Applications Malathion (Diethyl-d10) is used as one of the substances for the clean-up step in post-harvest pesticide residue analysis.<br>References Ucles, A., et al.: Talanta, 144, 51 (2015)<br></p>

<p>Applications Tiafenacil is a uracil herbicide used as a pesticide for the prevention and control of plants.<br>References Peng, X., et al. Faming Zhuanli Shenqing, 68pp Patent 2018 CODEN:CNXXEV<br></p>

<p>Applications (S,2E,6E)-Dehydroxy Pitavastatin is an impurity of Pitavastatin (P531000), a competitive inhibitor of HMG-CoA reductase and antilipemic agent.<br>References Aoki, T., et al.: Arzneim.-Forsch., 47, 904 (1997), Yamada, I., et al.: Xenobiotica, 33, 789 (2003), Park, S., et al.: Clin. Ther., 27, 1074 (2005),<br></p>

<p>Stability Very Hygroscopic<br>Applications DL-Lactic Acid-13C2 Sodium Salt is the isotope labelled sodium salt of DL-Lactic Acid. DL-Lactic Acid occurs in small quantities in the blood and muscle fluid of man and animals. The lactic acid concentration increases in muscle and blood after vigorous activity.<br>References He, W. et al.: Comp. Biochem. Phys. Part A: Mol. Int. Phys., 166, 308 (2013); Borsook, et al.: J. Biol. Chem., 102, 449 (1933); Brin, M., et al.: Ann. N.Y. Acad. Sci., 119, 851 (1965);<br></p>

<p>Applications Systemic fungicide for control of powdery mildew, rust in cereal crops.<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 Baloch, R.I., et al.: Phytochemistry, 23, 2219 (1984), Pommer, E.-H., et al.: Pestic. Sci., 15, 285 (1984),<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 Isotope labelled Diethyl Oxalate is used in the synthesis of novel indole β-diketo acid derivatives as HIV-1 integrase inhibitors.<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 Sechi, M., et al.: J. Med. Chem., 47, 5298 (2004);<br></p>

<p>Applications Sulfamonomethoxine-N1-glucosiduronic Acid, is a metabolite of Sulfamonomethoxine (S699145), found in human urine, after its administration. Sulfamonomethoxine is used as an antibacterial agent.<br>References Ueda, M.m et al.: Yakugaku Zasshi, 87, 455 (1967); Bridges, et al.: Biochem. J., et al.: 96, 829 (1965), Hong, Y.-L., et al.: Antimicrob. Agents Chemother., 39, 1756 (1995);<br></p>

<p>Applications 2-(1-Ethylpropyl)-2,4-dihydro-4-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]-3H-1,2,4-triazol-3-one is an intermediate in the synthesis of Deshydroxy Posaconazole Impurity (A6480252), which is a 2,2,5-tetrahydrofuran regioisomers of SCH 51048 (A648025) that exhibit antifungal activity.<br>References Lovey, R.G.; et al.: Bioorganic Med. Chem. Lett, 12, 1739 (2002)<br></p>

<p>Applications Pyrifenox<br></p>

<p>Applications N-Boc Gatifloxacin N-Oxide is an intermediate used in the synthesis of Gatifloxacin N-Oxide (G250005), which is an impurity of Gatifloxacin (G250000), an antibacterial agent.<br>References Bauernfeind, A.: J. Antimicro. Chemother., 40, 639 (1997), Fukuda, H., et al.: Antimicrob. Ag. Chemother., 42, 1917 (1998),<br></p>

<p>Stability Hygroscopic<br>Applications A mixture of 2 labelled metabolites of Styrene.<br>References Ryan, A., et al.: Drug Metab. Dispos., 5, 363 (1977), Delbressine, L., et al.: Xenobiotica, 11, 589 (1981), Truchon, G., et al.: J. Anal. Toxicol., 14, 227 (1990),<br></p>

<p>Applications Propoxur is a non-systematic carbamate insecticide. Propoxur is used against a wide range of insects such as fleas, mosquitoes, ants, gypsy moths, and other agricultural pests. Propoxur functions by reversibly inactivating the enzyme acetylcholinesterase in insects. It is also used 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 Voss, G.: Anzeig. Schaedling., 40, 73 (1967); Fraser, J. et al.: J. Sci. Food. Agric., 8 (1968); Corbel, V. et al.: Neurotoxicology, 27, 508 (2006);<br></p>

<p>Applications Nor Dihydrocodeine is a metabolite of Dihydrocodeine (D448850).This is a controlled substance.<br>References Lahti, R., et al.: Eur. J. Pharmacol., 109, 281 (1985), Schwanstecher, M., et al.: J. Neurochem., 59, 1325 (1992), Bartlett, S., et al.: Life Sci., 57, 609 (1995), Ammon, S., et al.: Brit. J. Clin. Pharmacol., 48, 317 (1999),<br></p>

<p>Stability Light Sensitive<br>Applications Isodrine is a highly toxic compound that is used as a pesticide in the agricultural industry.<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 Gaines, T.: Toxicol. Appl. Pharm., 14, 515 (1969); Walton, I., et al.: Org. Lett., 14, 2686 (2012)<br></p>

<p>Applications Methyl 3,6-dichloropyridine-2-carboxylate<br></p>

<p>Applications Fenoxaprop<br></p>

<p>Applications n-Nonanoic-9,9,9-d3 acid is labelled n-Nonanoic Acid (N649385) which is commonly used in conjunction with glyphosate, a non-selective herbicide, for a quick burn-down effect in the control of weeds in turfgrass. It is also used in the preparation of plasticizers and lacquers.<br>References Pline, W., et al.: Weed Technol., 14, 667 (2000); Frade, J., et al.: Anal. Bioanal. Chem., 395, 2167 (2009)<br></p>

<p>Applications α-Chloro-p-methyltoluene-13C is the labeled analogue of α-Chloro-p-methyltoluene(C369770). α-Chloro-p-methyltoluene is a building block that has been used as a reactant for the preparation of 6-aminoquinolone derivatives as submicromolar hepatitis C virus NS5B inhibitors<br>References Manfroni, G., et. al.: J. Med. Chem., Ahead of Print (2013)<br></p>

<p>Applications Emtricitabine Phosphonic Acid is an intermediate used in the synthesis of Emtricitabine Triphosphate Triethylammonium Salt (E525075), which is a metabolite of (-)-Emtricitabine (E525000).<br>References Barditch-Crovo, P., et al.: Antimicrob. Agents Chemother., 45, 2733 (2001); Ray, A., et al.: Antivir .Ther., 10, 451 (2005); Borroto-Esoda, K., et al.: Antivir. Ther., 11, 377 (2006)<br></p>

<p>Applications A new substituted pyridazinone with tuberculostatic action.<br>References Wright, L., et al.: J. Antimicrob. Chemother., 12, 317 (1983), Choi, W., et al.: Anal. Biochem., 219, 368 (1994), Zacchino, S., et al.: J. Nat. Prod., 62, 1353 (1999), Urbina, J., et al.: Bioorg. Med. Chem., 8, 691 (2000),<br></p>

<p>Applications Adefovir Dipivoxil Dimer is a formed from the dimerization of Adefovir Dipivoxil (A280465) which is used as an oral reverse transcriptase inhibitor in the treatment of hepatitis B. Adefovir Dipivoxil Dimer’s presence indicates the degradation of Adefovir Dipivoxil under specific conditions suggesting the stability of Adefovir Dipivoxil is compromised under such conditions.<br>References Yuan, L., et al.: Pharm. Res., 17, 1098 (2000); Fliri, A., et al.: J. Med. Chem., 52, 8038 (2009), Fourches, D., et al.: Chem. Res. Toxicol., 23, 171 (2010), Ming, X., et al.: Biochem. Pharmacol., 79, 455 (2010)<br></p>

<p>Stability Moisture Sensitive<br>Applications Fluorescent labeling reagent for proteins. Used in the fluorescent antibody technique for rapid identification of pathogens. Dyes and metabolites.<br>References Riggs, H.J.L., et al.: Amer. J. Pathol., 34, 1081 (1958), Mann, K.G. and Fish, W.W., Methods in Enz., 26, 28 (1972),<br></p>

<p>Applications N-[(2,4-Difluorophenyl)methyl]-2,4-difluoro-benzenemethanamine is derived from 2,4-Difluorobenzylamine (D45085), which acts as a reagent for the design of pyrazole derivatives as non-nucleoside heptatitis B virus inhibitors. It is also used as a reagent in the preparation, HIV antiviral activity, SAR, and molecular modelling of hydroxypyridonecarboxylic acids as HIV reverse transcriptase inhibitors.<br>References Jia, H., et al.: Eur. J. Med. Chem., 123, 202 (2016); Kankanala, J., et al.: J. Med. Chem., 59, 5051 (2016)<br></p>