Building Blocks

<p>Impurity Diacerein Impurity C<br>Stability Hygroscopic<br>Applications Found in the free state and as glucoside in Rheum spp, Polygonaceae (rhubarb) and in Senna leaves.A potential antioxidant resource: endophytic fungi from medicinal plants . Diacerein Impurity C<br>References Wanitschke, Pharmacology, 20, Suppl. 1, 21 (1980), Raimondi, L., et al.: Pharmacol. Res. Commun., 14, 103 (1982), Franchi-Micheli, S., et al.: J. Pharm. Pharmacol., 35, 262 (1983),<br></p>

<p>Stability Air Sensitive, Hygroscopic<br>Applications 2-Ethylhexyl-4-aminobenzoate is an impurity in the synthesis of Ethylhexyl Triazone (E918810), used in sunscreen formulations as a UV filter to block out harmful ultraviolet light.<br>References Potard, G. et al.: Int. J. Pharm., 189, 249 (1999); Couteau, C. et al.: J. Pharm. Biomed. Anal., 44, 270 (2007);<br></p>

<p>Applications 6-Methyl-2-heptanol is an intermediate used to prepare tri- and tetrasubstituted imidazoles as highly potent and specific ATP-​mimetic inhibitors of p38 MAP kinase.<br>References Laufer, S., et al.: J. Med. Chem., 51, 4122 (2008)<br></p>

<p>Applications [(2-Bromoethyloxy)methyl]benzene is a reactant used in the preparation of muscarinic antagonist.<br>References Bream, R. et al.: Org. Process. Res. Dev., 17, 641 (2013); Mete, A. et al.: Bioorg. Med. Chem. Lett., 21, 7440 (2011)<br></p>

<p>Applications Has binding affinity to guanine deaminase, an important metalloenzyme in purine catabolism. Found in urine of patients with malignant cancer.<br>References Fernandez, J. et al.; Bioorg. Med. Chem.; 18, 6748 (2010); Li, H. et al.; J. Mass. Spectrom. 44, 641 (2009)<br></p>

<p>Stability Hygroscopic<br>Applications N-Methylguanidine is an alkylated guanidine which shows inhibitory action against trypsin catalysis. N-Methylguanidine inhibited metabolism of certain hepatic drugs that was mediated by cytochrome P 450 protein in human liver microsome and hepatocyte.<br>References Inagami, T. et al.: Biochemistry, 7, 4045 (1968); Hanada, K. et al.: Nephron, 103, 179 (2006);<br></p>

<p>Stability Hygroscopic<br>Applications Genetic incorporation of a metal-ion chelating amino acid into proteins as a biophysical probe.<br>References McRee, D., et al.: J. Struct. Biol., 125, 156 (1999), Wang, L., et al.: Science, 292, 498 (2001), Ioerger, T., et al.: Methods Enzymol., 374, 244 (2003),<br></p>

<p>Applications Ethylenediamine Dihydrochloride (cas# 333-18-6) is a useful research chemical.<br></p>

<p>Applications D-Phenylalanine, the stereoisomer of L-Phenylalanine (P319415) has been used in the synthesis of Schaeffer’s acid analogues as important structures in tuberculostatic design. They exhibit the ability to inhibit Mycobacterium tuberculosis type II dehydroquinase.<br>References Schmidt, M. et al.: ChemMedChem., 8, 54 (2013);<br></p>

<p>Stability Light Sensitive<br>Applications D-α-Tocopherol Quinone is an vitamin E derivative that exhibits antioxidant properties. D-α-Tocopherol Quinone has been shown to partially restore the activity of NADH dehydrogenase and used to investigate the electron transport system in rat hepatocyte and human erythrocyte.<br>References Sun, I. L., et al.: Proc. Natl. Acad. Sci. USA 89, 11126 (1992); Hosomi, A., et al.: FEBS Lett. 409, 105 (1997)<br></p>

<p>Applications 5-Chloronaphthalene-2-sulfonyl Chloride (cas# 89108-45-2) is a compound useful in organic synthesis.<br></p>

<p>Applications o-Toluic acid is part of a group of Benzoic acid (B203900) derivatives that possess inhibitory activity against mushroom tyrosinases. o-Toluic acid is also used as a reagent to synthesize halogen-substituted benzoic acids (such as 2,4-Dichlorobenzoic acid [D431955]), which have potential muscle stimulating effects.<br>References Lu, R., et al.: J. Comput. Theor. Nano., 4, 1311 (2007); Huang, X., et al.: Food Chem., 94, 1 (2005)<br></p>

<p>Applications Intermediate in sugar metabolism and in enzymatic carbohydrate degradation (alcoholic fermentation) where it is converted to acetaldehyde and CO2 by carboxylase. In muscle, Pyruvic acid (derived from glycogen) is reduced to lactic acid during exertion, which is reoxidized and partially retransformed to glycogen during rest. The liver can convert Pyruvic acid to alanine by amination. A diagnostic agent for Parkinson disease.<br>References Wenzel, A., et al.: J. Neurosci., 21, 53 (2001), Martinez., et al.: Development, 6, 851 (2002), Nakayama, K., et al.: J. Biochem., 146, 757 (2009), Tanaka, T., et al.: J. Pharmacol. Sci., 109, 24 (2009),<br></p>

<p>Applications 4-Methyl-6-(methylamino)-1,3,5-triazin-2(1H)-one is a heterocyclic Triazine based building block useful in organic synthesis. It is related to 2-Amino-4-methoxy-6-methyl-1,3,5-triazine (A616880), which is used to synthesize pesticides.<br>References Klein, J., et al.: J. AOAC Intrnational, 86, 1015 (2003); Pang, G., et al.: J. Chromat. A, 1125, 1 (2006);<br></p>

<p>Applications (1R,5S,6R)-Ethyl 5-(Pentan-3-yloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate is the enantiomer of Ethyl (3R,4S,5S)-4,5-Epoxy-3-(1-ethylpropoxy)cyclohex-1-ene-1-carboxylate (E917820), an intermediate of Oseltamivir.<br>References Clark, C., et al.: J. Med. Chem., 31, 831 (1988)<br></p>