Toxicología

<p>Impurity Clonidine EP Impurity A<br>Applications 1-Acetyl-2-imidazolidinone (Clonidine EP Impurity A) is a synthetic reagent used in the preparation of triple [14C]-labelled moxonidine which is an antihypertensive compound.<br>References Czeskis, B., et al.: J. Labelled Comp. Radiopharm., 47, 699 (2004)<br></p>

<p>Applications The main phase I metabolites of Azelastine.<br>References Adusumalli, V., et al.: Drug Metab. Dispos, 20, 530 (1992), Mano, N., et al.: J. Pharm. Biomed. Anal., 12, 557 (1994), Baldwin, S., et al.: Xenobiotica, 25, 261 (1995), Kobayashi, K., et al.: J. Pharmacol. Exp. Ther., 280, 927 (1997),<br></p>

<p>Stability Hygroscopic, Temperature Sensitive<br>Applications Gemcitabine Triphosphate is a phosphorylated metabolite of Gemcitabine (G305000), an antineoplastic agent.<br>References Kennedy., E.P., et al.: J. Biol. Chem., 222, 193 (1956),<br></p>

<p>Applications Cyclizine is a piperazine derivative with anti-emetic activity that is useful in the prevention and treatment of nausea and vomiting associated with motion sickness. Antiemetic.<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 Kuntzman, R., et al.: J. Pharmacol. Exp. Ther., 158, 332 (1967), Walker, R., et al.: Eur. J. Pharm. Sci., 4, 301 (1996), Dumasia, M., et al.: Xenobiotica, 32, 795 (2002),<br></p>

<p>Applications AICAR is a nucleoside analogue that is able to enter nucleoside pools and is able to significantly increase levels of adenosine during periods of ATP breakdown. Adenosine-regulating agents (ARAs) have been recognized for therapeutic potential in myocardial ischemia. Cardioprotective.<br>References Mullane, K., et al.: Trends Cardiovasc Med., 3, 227 (1993), Browne, G.J., et al.: J. Biol. Chem., 279, 13, 12220 (2004)<br></p>

<p>Applications Aldicarb is used as an insecticide. Used in Pesticide detection. Useful in cannabis testing kits as a component of pesticide mixes (P698240).<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 Ashby, J., et al.: Environ. Mutagen., 7, 919 (1985), Ashby, J., et al.: Mutat. Res., 257, 229 (1991), Kazius, J., et al.: J. Med. Chem., 48, 312 (2005), Benigni, R., et al.: Mutagenesis, 25, 335 (2010),<br></p>

<p>Applications Amcinonide (A576150) analog as glucocorticoid receptor agonists for the treatment of inflammation and allergic conditions.<br>References Woodford, R., et al.: Curr. Ther. Res., 26, 301 (1979),<br></p>

<p>Applications Androstenediol 3-Acetate is an intermediate in the synthesis of Pregnenolone (P712200) which is a steroid hormone involved in the steroidogenesis of progesterone, mineralocorticoids, glucocorticoids, androgens, and estrogens.<br>References Stastna, E., et al.: Steroids., 75, 721 (2010);<br></p>

<p>Stability Hygroscopic<br>Applications A phenethylamine derivative as sympathomimetics. Adrenergic.<br>References Lee, P., et al.: Mol. Pharmacol., 4, 498 (2007), Coan, K., et al.: J. Med. Chem., 52, 2067 (2009),<br></p>

<p>Applications 2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzonic Acid is a potential metabolite of Chlorthalidone.<br>References Salado C., et al.: J. Chromatography. Biomed. App., 690, 195 (1997);<br></p>

<p>Stability Hygroscopic<br>Applications Sodium 17beta-Estradiol-2,4,16,16-d4 3-Sulfate (Stabilized with TRIS, 50% w/w) (CAS# 352431-50-6) is a useful isotopically labeled research compound.<br></p>

<p>Impurity Beclomethasone Dipropionate EP Impurity L<br>Applications 1,2-Dihydro Beclomethasone Dipropionate (Beclomethasone Dipropionate EP Impurity L) is an impurity of Beclomethasone Dipropionate (B131030).<br></p>

<p>Applications 7α-Hydroxy-4-cholesten-3-one is a metabolite of Cholesterol (C432501).<br>References Connor, W., et al.: J, Clin. Invest., 48, 1363 (1969), Nestel, P., et al.: Metabolism, 24, 189 (1975), Ellegard, L., et al.: Eur. J. Clin. Nutr., 45, 451 (1991), Pedersen, A., et al.: J. Lipid Res., 41, 1901 (2000),<br></p>

<p>Applications 3-Cysteinylacetaminophen-D5 (major), Trifluoroacetic Acid Salt is deuterium labeled 3-Cysteinylacetaminophen Trifluoroacetic Acid Salt (C994750), which 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).Minimum isotopic incorporation d-3, no d-0 present. A representative lot has 64% isotopic incorporation at the 6-position, 89% at the 4-position.<br>References (1) McGill, M. R. and Jaeschke, H. Pharm Res. 30, 2174 (2013)(2) Fairbrother, J.E., et al.: Anal. Profiles Drug Subs., 3, 1 (1974) (3) Hinson, J.A., et al.: Rev. Biochem. Toxicol., 2, 103 (1980)<br></p>

<p>Applications Campesteryl Ferulate is a component of γ-​oryzanol with antioxidant activities.<br>References Xu, Z., et al.: J. Agric. Food Chem., 49, 2077 (2001);<br></p>

<p>Stability Hygroscopic<br>Applications Troglitazone Sulfate is the major metabolite of Troglitazone (T892500), a hypoglycemic agent with cholestatic effect.<br>References Ciaraldi, T.P., et al.: Metabolism, 39, 1056 (1990); Kuzuya, T., et al.: Diabetes Res. Clin. Pract., 11, 147 (1991); Kellerer, M., et al.: Diabetes, 43, 447 (1994); Adachi, Y., et al.: Mol. Pharmacol., 67, 923 (2005);<br></p>

<p>Stability Hygroscopic<br>Applications 2'-(2H-Tetrazol-5-yl)-[1,1'-biphenyl]-4-carboxylic Acid is a transformation product of Valsartan (V095750); a nonpeptide angiotensin II AT1-receptor antagonist and antihypertensive. 2'-(2H-Tetrazol-5-yl)-[1,1'-biphenyl]-4-carboxylic Acid is also referred to as Valsartan acid.<br>References Noedler, K., et al.: Water Res., 47, 6650 (2013); Criscione, L., et al.: Brit. J. Pharmacol., 110, 761 (1993); Muller, P., et al.: Eur. J. Clin. Pharmacol., 47, 231 (1994)<br></p>

<p>Applications Ethyl Deoxycholate is the ethyl ester of the common bile salt Deoxycholic Acid (D232645), a Cholic Acid (C432600) derivative used as a component in cell lysis buffers.<br>References Tuangtong, R. et al.: Dermatol. Surg., 36, 899 (2010); Araki, Y. et al.: Scand. J. Gast., 36, 533 (2001);<br></p>

<p>Applications Prednisolone 21-Valerate was used to detect corticosteroid in pharmaceuticals and cosmetics via TLC, LC/MS, and HPLC.<br>References Park, M., et al.: Yakhak Hoechi, 55, 289 (2011); Kamano, Y., et al.: Tokyo Ika Daigaku Kiyo, 6, 25 (1980);<br></p>

<p>Applications Nonpeptide endothelin ETA receptor antagonist. Antihypertensive.<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 Impurity of Bivalirudin, a direct thrombin inhibitor acting as an anticoagulant through inhibition of the enzyme thrombin.<br>References Bertrand, O. et al.: Am. J. Cardio., 110, 599 (2012); Patti, G. et al.: Am. J. Cardio., 110, 478 (2012);<br></p>

<p>Applications A metabolite of Acepromazine (A130900).<br>References Cossum, P., et al.: Drug Dispos., 9, 321 (1988), Stowell, L., et al.: J. Anal. Toxicol., 22, 166 (1998),<br></p>

<p>Applications Diazoxide-d3 is the labeled analogue of Diazoxide (D417305), which reduces status epilepticus neuron damage in diabetes.<br>References Baba, A., et al.: J. Neurosci., 23, 7737 (2003); Bancila, V., et al.: J. Neurochem., 90, 1243 (2004); Bancila, V., et al.: J. Biol. Chem., 280, 8793 (2005)<br></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Cortisol (H714615).<br>References Quinkler, M., et al.: J. Clin. Endocrinol. Metab., 88, 2384 (2003), Draper, N., et al.: J. Endocrinol., 186, 251 (2005), Kotlowska, A., et al.: Clin. Biochem., 42, 448 (2009),<br></p>

<p>Applications Cymoxanil is a fungicide applied as a seed treatment or as a foliar application to the plants to control late blight.<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 Dhingani, J. C., et al.: J. Pure. App. Microbiol., 6, 1683 (2012); Bakirici, G.T., et al.: Food. Chem., 135, 1901 (2012);<br></p>

<p>Applications Bromantane is an adamantane derivative used as an anxiolytic agent.<br>References Reznikov, A., et al.: Endokrinologie, 73, 11 (1979), Grekhova, T., et al.: Bull. Eksp. Biol. Med., 119, 302 (1995),<br></p>

<p>Stability Hygroscopic<br>Applications Synthetic thrombin inhibitor. Thrombin mutant anticoagulant antagonist. Antithrombotic.<br>References Dewanjee, M., et al.: J. Nucl. Med., 22, 981 (1981), Goodman, S., et al.: J. Biomed. Mater. Res., 45, 240 (1999), Carlsson, S., et al.: Thromb. Res., 115, 9 (2005),<br></p>

<p>Applications Telocinobufagin is isolated as a major component from skin secretion of the toad Bufo rubescens. Telocinobufogenin is a novel antibiotic cardiotonic.<br>References Akizawa, T., et al.: Chem. Pharm. Bull., 42, 754 (1994); Hancock, R., et al.: Antimicrob. Agents Chemother., 43, 1317 (1999); Jing, Y., et al.: J. Cancer Res., 85, 645 (1994); Kamano, Y., et al.: J. Med. Chem., 45, 5440 (2002); Schoner, W., et al.: Eur. J. Biochem., 269, 2440 (2002); Cunha Filho, G., et al.: Toxicon, 45, 777 (2005)<br></p>

<p>Stability Hygrscopic<br>Applications N1,N12-Diacetylspermine Dihydrochloride is a diacetylated derivative of Spermine (S680510) and is recognized as a novel tumor marker in patients with breast and colorectal cancers.<br>References Kato, M., et al.: Anticancer Res., 34, 3053 (2014); Umemori, Y., et al.: Clin. Chim. Acta, 411, 1894 (2010); Kawakita, M., et al.: J. Biochem., 139, 315 (2006); Hiramatsu, K., et al.: Clin. Cancer Res., 11, 2986 (2005)<br></p>

<p>Applications Tenivastatin Calcium is derived from Simvastatin (S485000), which is a synthetic derivative of a fermentation product of Aspergillus terreus. A competitive inhibitor of HMG-CoA reductase. A synthetic analog of Lovastatin. Antilipemic. Simvastatin, the drug, is sold under the trade name Zocor.<br>References Hoffman, W.F., et al.: J. Med. Chem., 29, 849 (1986), Mol, M.J., et al.: Lancet, 2, 936 (1986)<br></p>

<p>Applications A dextrorotatory stereoizomer of Quinine. Antiarrhythmic (class IA). Antimalarial.<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 Loutfy, M.A., et al.: Anal. Profiles Drug Subs., 12, 483 (1983), Mason, J. W., et al.: Ann. N. Y. Acad. Sci., 432, 162 (1984),<br></p>

<p>Stability Light Sensitive<br>Applications β-Cembrenediol is an inhibitor of tumor promotion. Novel c-Met inhibitors which are used in anticancer treatments.<br>References Le-Huu, P. et al.: ChemCatChem., 8, 3755 (2016); Ebrahim, H. et al.: Bioorg. Med. Chem., 24, 5748 (2016);<br></p>

<p>Applications Metabolite of 5α-Androst-16-en-3β-ol<br>References Gower, D., et al.: J. Steroid Biochem. Mol. Biol., 63, 81 (1997), Zorko, M., et al.: Steroids, 65, 46 (2000), Diel, P., et al.: Toxicol. Lett., 169, 64 (2007),<br></p>

<p>Applications Pipamazine is a drug od the phenothiazine class which used to be used as an antiemetic.<br>References Bhargava, K. et al.: Br. J. Pharmacol. Chemother., 22, 154 (1964); Bhargava, K. et al.: Br. J. Pharmacol. Chemother., 21, 436 (1963);<br></p>

<p>Applications Methyltriphenylphosphonium Bromide is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.<br>References Selassie, C.D. et al.: J. Med. Chem., 33, 1914 (1990); Venkatachalam, M.A et al.: Kidney Int., 49, 449 (1996);<br></p>

<p>Applications A metabolite of Temozolomide, an antineoplastic.<br></p>

<p>Applications A new indicator for the determination of organic acid anhydrides by the morpholine method.<br>References Ruch, J.E., et al.: Anal. Chem., 47, 2057 (1975),<br></p>

<p>Applications Pirenoxine, is a medication used in the possible treatment and prevention of cataracts.<br>References Liao, J. H. et al.: Inorganic Chemistry. 50 (1): 365–377.<br></p>

<p>Stability Hygroscopic<br>Applications Benfotiamine-Amide is an analog of Benfotiamine, which is a Vitamin B1 analog. Synthetic S-acyl derivative of Thiamine (T344185).<br>References Stracke, H., et al.: Exper. Clin. Endocrinol., Diabetes, 116, 600 (2008), Gohil, V., et al.: Nat., Biotechnol., 28, 249 (2010),<br></p>

<p>Applications Juvenile Hormone B 3 is a sesquiterpenoid produced by the larval ring gland and adult corpus allatum (CA) of Drosophila melanogaster. Juvenile hormones regulate development, reproduction, diapause, and polyphenisms.<br>References Wang, Ch., et al.: Gen. Comp. Endocr., 176, 347 (2012); Bendena, W.G., et al.: Gen. Comp. Endocr., 172, 56 (2011); Wyatt, G., Davey, K.: Adv. Insect Physiol., 26, 1 (1996); Nijhout, H.: Insect Hormones (Princeton Univ. Press, Princeton) (1994)<br></p>

<p>Applications 2-Azidoethanol is used as a reagent in the glycosylation of mono- or polysaccharides. 2-Azidoethanol is also used as a 2’-deoxy-ethynyluridine (EdU) blocker in nuclear DNA, preventing cross reactivity with other antibodies in order to better study its related pathways in the body.<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 Liboska, R., et al.: PLOS ONE, 7, e51679 (2012); Sun, X., et al.: Biomacromolecules, 3, 1065 (2002)<br></p>

<p>Impurity Amlodipine EP Impurity H<br>Applications Amlodipine Besilate (A633500) impurity. Used in the process for preparing Amlodipine benzenesulfonate. Amlodipine EP Impurity H<br></p>

<p>Applications A novel bile acid, an analogue of Cholic acid (C432600).<br>References Yamaga, N., et al.: J. Biochem., 116, 1123 (1994),<br></p>

<p>Applications A new Sildenafil (S435000) analogue.<br>References Balayssac, S., et al.: J. Pharm. Biomed. Anal., 50, 602 (2009),<br></p>

<p>Applications Octopamine-13C2,15N Acetic Acid is the salt form of Octopamine-13C2,15N(O239752). Labelled Octopamine (O239750). A biogenic amine that is the phenol analog of Noradrenaline. It is a neurosecretory product found in several vertebrates and invertebrates. Adrenergic.<br>References Pisano, et al.: Biochim. Biophys. Acta., 43, 566 (1960), Breen, C.A., et al.: Nature, 303, 716 (1983);<br></p>

<p>Impurity Beclomethasone Dipropionate EP Impurity D<br>Applications 9-Deschloro-9-bromo Beclomethasone Dipropionate (Beclomethasone Dipropionate EP Impurity D) is an impurity of Beclomethasone Dipropionate (B131030).<br>References Shou, M. et al.: J. Pharmac. Biomed. Anal., 50, 356 (2009); Johnston, S. et al.: J. Chrom. Sci., 48, 733 (2010);<br></p>

<p>Applications S 23 is a selective androgen receptor modulator.<br>References Thevis, M., et al.: Drug Testing and Analysis, 2, 589 (2010); Jones, A., et al.; Endocr., 150, 385 (2009)<br></p>

<p>Applications Pranoprofen is an anti-inflammatory used in ophthalmology.<br>References Ayaki, M., et al.: Biocont. Sci., 15, 97 (2010); Lee, X., et al.: For. Toxicol., 28, 96 (2010);<br></p>

<p>Applications (R,S)-Equol is a human urinary metabolite of the soy isoflavones Daidzein (D103500).<br>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),<br></p>

<p>Applications 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic Acid is a reagent used in the preparation of hapten and immunogen for the production of polyclonal antibodies, specific to Cypermethrin (C989000).<br>References Lee, N. et al.: J. Agri. Food Chem., 46, 520 (1998); Hongsibsong, S. et al.: Int. J. Agri. Biol., 14, 246 (2012);<br></p>

<p>Applications Probenazole can be used in agricultural use and biological study of preparation of nicotinamide compounds containing chiral oxazoline and application thereof as agricultural antimicrobial agent.<br>References Li, S., et al.: Faming Zhuanli Shenqing, CN 106397422 A 20170215 (2017)<br></p>

<p>Applications O-Hydroxyethyl Metronidazole is the hydroxy ethyl analogue and impurity of the antiprotozoal agent Metronidazole (M338880). O-Hydroxyethyl Metronidazole as well as other 1-substituted-2-methyl-5-nitroimidazoles showed potential antitrichomonal activity.<br>References Kajfez, F. et al.: J. Med. Chem., 11, 167 (1968);<br></p>

<p>Applications Nucleoside analog; specific inhibitor of hepatitis B virus (HBV) replication. Antiviral.<br>References Standring, D.N., et al.: Antiviral. Chem. Chemother., 12, 119 (2001), Hernandez-Santiago, B., et al.: Antimicrob. Agents Chemother., 46, 1728 (2002), Lai, C.-L., et al.: Hepatology, 40, 719 (2004), Han, S.-H.B., et al.: Expert Opin. Invest. Drugs, 14, 511 (2005),<br></p>

<p>Applications T-705RTP-13C5 Sodium Salt is a labeled salt derivative of T-705 (F103350) which has activity against the lethal H5N1 influenza A viruses.<br>References Yousuke, F., et al.: Antimicrob Agent Chemother., 49, 981 (2005); Kiso, M., et al.: Proc. Natl. Acad. Sci. U.S.A., 107, 882 (2010)<br></p>

<p>Applications Metolachlor OA-d11 is a deuterium labeled form of Metolachlor OA (M338705), which is a derivative of herbicide Metolachlor (M338700). Metolachlor OA is a drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.<br>References 1. McGahen, L. et al.: J. Agric. Food Chem. 1978 26 (2), pp 414–4192. Chesters, G. et al.: Rev. Environ Contam Toxicol. 1989;110:1-74<br></p>

<p>Applications Labelled selective COX-2 inhibitor<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 Kulmacz, R.J., et al.: J. Biol. Chem., 264, 14136 (1989), Kalgutkar, A.S., et al.: J. Med. Chem., 43, 2860 (2000), Hata, A.N., et al.: Mol. Pharmacol., 67, 640 (2005), Tuccinardi, T., et al.: J. Med. Chem., 49, 984 (2006),<br></p>

<p>Stability Material darkens in storage with no loss in purity<br>Applications 3-Chlorobenzenamine is used in the synthesis of pyrimidoazepine analogs as serotonin 5-HT2A and 5-HT2C receptor ligands for the treatment of obesity. Also used in the synthesis of novel COX-2 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 Yang, H. et al.: Eur. J. Med. Chem., 63, 558 (2013); Penning, T. et al.: J. Med. Chem., 40, 1347 (1997);<br></p>

<p>Applications 4-Chlorophenylamine is an organic chemical reagent and precursor in the synthesis of various drugs and dyestuffs. It is a building block and a degredation product of Chlorhexidine (C335045), an antiseptic as well as azo dyes and pigments in printing and textiles.<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 Leucea, D. et al.: Ind. Text., 61, 304 (2010); Below, H. et al.: Microchim. Acta 146, 129 (2004);<br></p>

<p>Applications Nelfinavir Mesylate is an antiviral. HIV protease inhibitor. It is a COVID19-related research product.<br>References Patick, A.K., et al.: Antimicrob. Agents Chemother., 40, 292 (1996), Bardsley-Elliot, G.L., et al.: Drugs, 59, 581 (2000)<br></p>

<p>Applications Analgesic; sedative; anesthetic.Controlled substance (opiate).<br>References DeRossi, R., et al.: Vet. J., 178, 294 (2008), Hoecker, J., et al.: Anesthesiol., 109, 95 (2008), Fliri, A., et al.: J. Med. Chem., 52, 8038 (2009),<br></p>

<p>Applications Trimethoprim lactate salt is an antibacterial agent.<br>References Lees, G. et al.: Brit. J. Pharmacol., 73, 535 (1981);<br></p>

<p>Applications Labelled analogue of Sulfachlorpyridazine, an antibacterial compound.<br>References Wammer, K.: Environ. Toxicol. Chem. 25, 1480 (2006);<br></p>

<p>Applications Hawkinsin is a urinary metabolite from the rare disorder of tyrosine metabolism, known as Hawkinsinuria; Also, it is derived from 4-Hydroxyphenylacetic Acid (H949060), which is a compound present in olive oil. An important fine chemical intermediate with broad prospects for application development.<br>References Gomez-Ospina, N., et al.: J. Inherit. Metab. Dis., 39, 821-829 (2016); Shu, Y., et al.: Guangdong Huagong, 37, 108 (2010), Papadopoulos, G., et al.: J Am Oil Chem Soc, 68, 669 (1991),<br></p>

<p>Applications Ethaboxam is a pesticide used as a fungicide against fungal infections in crops.<br>References Kim, D. et al.: Pest Manage. Sci., 60, 1007 (2004); Park, M. et al.: J. Microbiol. Biotech., 13, 43 (2003);<br></p>

<p>Applications Thallium sulfate is an inorganic compound used in the preparation of luminescent extended one-​dimensional heterobimetallic chain compounds with relativistic metal-​metal bonds, by reaction with gold thiophosphinomethyl complexes.<br>References Wang, S.; et al.: Inorg. Chem., 28, 4623 (1989);<br></p>

<p>Stability Hygroscopic, Unstable in DMSO<br>Applications Post-emergence sulfonylurea 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 Gubbiga, N.G., et al.: Weed Technol., 9, 574 (1995), Ukrainczyk, L., et al.: J. Agric. Food Chem., 43, 855 (1995)<br></p>

<p>Applications An alkylated dipeptide reported to be 6000 to 10000 times sweeter than sucrose; structurally related to Aspartame. A non-nutritive sweetener.<br>References Ranney, R., et al.: J. Toxicol. Environ. Health, 2, 441 (1976), Padden, B.E., et al.: Anal. Chem., 71, 3325 (1999), Arai, H., et al.: Metabolism, 56, 115 (2007),<br></p>

<p>Stability Light Sensitive<br>Applications Labelled Rifabutin (R505000). Semisynthetic derivative of Rifamycin S that inhibits nucleic acid synthesis. An antibacterial (tuberculostatic).<br>References O’Brien, R.J., et al.: Infect. Dis., 9, 519 (1987), Anand, R., et al.: Antimicrob. AG. Chemother., 32 (684 (1988), Skinner, M.H., et al.: Antimicrob. Agent Chemother., 33, 1237 (1989),<br></p>

<p>Applications N-Methylol Minocycline is a derivative of Minocycline Hydrochloride (M344800); a second generation tetracycline antibiotic. Antibacterial.<br>References Zbinovsky, V., et al.: Anal. Profiles Drug Subs., 6, 323 (1977); Oringer, R.J., et al.: J. Periodontol., 73, 835 (2002); Chung, J.Y.L., et al.: Tetrahedron Lett., 49, 6095 (2008)<br></p>

<p>Stability Hygroscopic<br>Applications Metam-sodium-d3 Hydrate is labelled Metam-sodium (M225810,Hydrate; M258950, anhydrous) which is a soil fumigant that is widely used as a pesticide.<br>References Reif, D.M., et al.: Enviro. Health. Perspect., 118, 1714 (2010); Knight. A.W., et al.: Regulat. Toxicol. Pharmacol., 55, 188 (2009);<br></p>

<p>Applications Isotope labelled 4-Chlorobenzoic Acid is a benzoic acid analogue that showed antifungal activity against strains of Aspergillus flavus, Aspergillus fumigatus and Aspergillus terreus, causative agents of human aspergillosis, in in vitro bioassays. It is used as a preservative.<br>References Rep, M., et al.: J. Biol. Chem., 275, 8290 (2000), Jaeger, T., et al.: Biofactors, 27, 109 (2006), Kim, J., et al.: Fungal Biology, 114, 817 (2010),<br></p>

<p>Applications (±)-Diclofop is an Acetyl-CoA carboxylase (ACCase) inhibiting herbicide.<br>References Zhang, H., et al.: Proc. Natl. Acad. Sci. U.S.A., 101, 5910 (2004); Yu, Q., et al.: Plant Physiol., 145, 547 (2007);<br></p>

<p>Applications Antineoplastic; non-selective steroidal aromatase inhibitor that prevents the conversion from androgen to estrogen. Used in in the treatment of familial male precocious puberty. An effective anti-tumor agent.<br>References Dunkel, L.: Mol. Cell. Endocrinol., 254, 207 (2006); Eugster, E. A.: Treat. Endocrinol., 3, 141 (2004); Holbeck, S.L. et al.: Mol. Cancer Therap., 9, 1451 (2010);<br></p>