Building Blocks

<p>Impurity Fluorouracil EP Impurity D<br>Applications 5-Methoxyuracil (Fluorouracil EP Impurity D) is methoxylated uracil, a component of nucleid acid. 5-Methoxyuracil is used in the preparation of nucleosides.<br>References Vorbrueggen, H. et al.: Chem. Ber., 114, 1279 (1981); Novacek, A. et al.: Coll. Czech. Chem. Comm., 32, 1045 (1967);<br></p>

<p>Applications NALPHA-(5-FLUORO-2,4-DINITROPHENYL)-L-LEUCINAMIDE (cas# 178065-29-7) is a useful research chemical.<br></p>

<p>Applications Dansylhydrazine is a fluorescent marker for carbonyl compounds.<br></p>

<p>Stability Moisture Sensitive<br>Applications Reagent for fluorescent labelling of amines, amino acids and proteins.<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 Weber, G., et al.: Biochem. J., et al.: 51, 155 (1952), Kinoshita, T., et al.: Anal. Biochem., 66,104 (1975), Marks, R., et al.: Br. J. Dermatol., 111, 265 (1984),<br></p>

<p>Applications Tetrahydro-5-methyl-2-furanol is an intermediate in synthesizing 2,3-Dihydro-2-methylfuran (D447355), which is a general reagent used in next generation of biofuels. Dihydrofuranyl derivative.<br>References Simmie, J. et al.: J. Phys Chem., 116, 4528 (2012);<br></p>

<p>Applications Octinoxate is used in the preparation of polymer particles for the preparation of UV protective materials.<br>References Steeley, K. et al.: Dyes. Pigments. 105, 12 (2014); Couteau, C. et al.: Pharm. Dev. Tech., 19, 315 (2014); Chem. and Eng. News page 22, Aug. 6 (2018)<br></p>

<p>Applications 4-Methylenepiperidine Hydrochloride is a building block that can be coupled with aryl halides via Suzuki cross-coupling to give benzyl piperidines and related compounds.<br>References Vice, S., et al.: J. Org. Chem., 66, 2487 (2001);<br></p>

<p>Applications 5-acetyloxolan-2-one (cas# 29393-32-6) is a useful research chemical.<br></p>

<p>Applications Vinylene Carbonate is the smallest unsaturated cyclic carbonic acid ester. It is used as an additive for electrolyte solutions for Lithium-ion and Sodium-ion batteries.<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 Aurbach, D., et al.: Electrochim. Acta, 47, 1423 (2002); Hu, Y., et al.: Angew. Chem. Int. Ed., 47, 1645 (2008); Komaba, S., et al.: Adv. Funct. Mater., 21, 3859 (2011);<br></p>

<p>Stability Air Sensitive, Light Sensitive<br>Applications 5-Hydroxyindole-3-acetic acid is an impurity of chlorpheniramine (C424300), an antihistaminic agent.<br>References Josko, J., et al.: Annal. Acad. Med. Siles., 66, 13, (2012); Carson, R.P., et al.: Human. Molec. Genetics., 22, 140 (2013);<br></p>

<p>Applications 4-Acetylpyridine is a acetylated pyridine used in the preparation of nitrogen containing bicyclic heterocycles and other organic compounds. 4-Acetylpyridine is also present in mainstream cigarette smoke.<br>References Kulshreshtha, N.P. et al.: J. Chrom. A, 985, 303 (2003); Scian, M. et al.: Inhal. Toxicol., 21, 1040 (2009);<br></p>

<p>Applications An oxazole derivative used as an antibiotic. It is also used in the preparation of compounds with antitumor activity. A metabolite of Furazolidone (F864100).<br>References Miyahara, M. et al.: CHem. Pharmac. Bull., 29, 2366 (1981); Hunder, G. et al.: Arch. Toxicol., 61, 161 (1987); Roloff, T. et al.: Med. Monat. Pharrm., 22, 370 (1999);<br></p>

<p>Applications Acrolein Diethyl Acetal is used as a reagent in quinoline synthesis by improved Skraup-Doebner-Von Miller reactions.<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></p>

<p>Applications 5-Iodouracil is a halogenated pyrimidine that can be used in nucleoprotein photo-crosslinking via RNA substitution. 5-Iodouracil is used in thymidine phosphorylase targeted imaging and therapy. Studies show that DNA N-glycosylase MED1 exhibited higher preference for 5-Iodouracil and halogenated bases over non-halogenated ones.<br>References Meisenheimer, K. et al.: Meth. Enzymol., 318, 88 (2000); Klecker, R.W. Jr. et al.: Cancer Chemother. Pharmacol., 48, 407 (2001); Turner, D.P. et al.: Cancer Res., 66, 7686 (2006);<br></p>

<p>Applications Mesitoic acid can be used for its antioxidant.<br>References Thomas, P.S., et.al.: Medicines, 4, 1-7, (2017);<br></p>