Heterocycles with Nitrogen (N)

Applications 2,4-Di-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)phenol is a UV absorber.
References Moisan, J.: Eur. Polymer J., 16, 979 (1980); Nakata, H., et al.: Environ. Sci. Technol.,43, 6920 (2009)

Applications 2,2,6,6-tetramethylpiperidin-4-one hydrochloride (cas# 33973-59-0) is a useful research chemical.

Applications 3-(4-iodo-1H-pyrazol-1-yl)propanenitrile (cas# 88393-88-8) is a useful research chemical.

Applications 1,3-Dibromo-5,5-dimethyl-2,4-imidazolidinedione is a useful synthetic intermediate in aromatic bromination of alkoxybenzoic acids and in bromofluorination of alkenes.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Olah, G., et al.: Synthesis, 7, 692 (1993); Auerbach, J., et al.: Tetrahedr. Lett., 34, 931 (1993)

Applications Pyridin-3-yl dimethylcarbamate (cas# 51581-32-9) is a useful research chemical.

Applications 2-Chloro-4,6-dimethoxy-1,3,5-triazine (cas# 3140-73-6) is a compound useful in organic synthesis.

Stability Hygroscopic
Applications 5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic Acid Hydrochloride is used as a reagent in the synthesis of N-(2-acylaminobenzyl or 2-acylaminoheterocyclylmethyl)thiophene-2-carboxamide derivatives as antithrombotics. It is also used as a reagent in the synthesis of diamide derivatives as FXa inhibitors. 5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic Acid Hydrochloride is an intermediate for Edoxaban (E555520).
References Mochizuki, A., et al.: Jpn. Kokai Tokkyo Koho. JP 2010120852 A 20100603. Jun 3, 2010; Mochizuki, A., et al.: PCT Int. Appl. WO 2008123017 A1 20081016. Oct 16, 2008

Applications 3-Amino-5-mercapto-1,2,4-triazole is used as a corrosion inhibitor. It can also be used as a reactant in the synthesis of triazole derivatives.
References Ergun, Umit, et al.: J. of Mat. Eng. and Perf., 23(1), 213-221 (2014); Elgemeie, Galal H., et al.: Nucleosides, Nucleotides & Nucleic Acids, 37(2), 112-123 (2018)

Applications 5-Bromo-2-(2-methyl-2H-tetrazol-5-yl)pyridine is a reagent in the synthesis and structure-activity relationship studies of highly potent novel benzoxazinyl-oxazolidinone which is an antibacterial agent. Benzoxazinyl-oxazolidinone had potent activity against Gram-positive pathogens. 5-Bromo-2-(2-methyl-2H-tetrazol-5-yl)pyridine is also an intermediate in the synthesis of Tedizolid (T013750).
References Xin, Q., et al.: J. Med. Chem., 54, 7493 (2011)

Applications 2-Oxo-1-benzimidazolinebutyric Acid (cas# 3273-68-5) is a compound useful in organic synthesis.

Applications 2,4-Diaminopyrimidine-5-carbonitrile is used as an intermediate for the preparation of medicines and agrochemicals (1).
References (1) Otzen, T., et al.: J. Med. Chem., 47, 240 (2004)

Applications Isotope Labelled 2-Bromopyridine is a 2-halogenated pyridine used in the preparation of a variety of biologically active compounds such as antimalarial agents and beta-adrenoceptor agonist.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References LaMontagne, M.P. et al.: J. Med. Chem., 17, 519 (1974); Yoshizaki, S. et al.: Chem. Pharm. Bull., 37, 3430 (1989);

Applications 4-Cyanopyridine is a reagent for the synthesis of 1-tolyl-5-benzylthiotetrazole and 2-hexylthio-4-pyridinecarbonitrile, an antituberculotics. Preparation of the antihypertensive agent Pinacidil using the chemoselective and green oxidative rearrangement of an amidine and addition of an amine to a guanidine as the key step. Structure-based discovery of human L-xylulose reductase inhibitors from database screening and molecular docking. Human L-xylulose reductase (XR) is an enzyme of the glucuronic acid/uronate cycle of glucose metabolism with the possible target for treatment of the long-term complications of diabetes.
References Waisser, K., et al.: Folia Pharmaceutica Universitatis Carolinae, 18, 31 (1995); Carbone, V., et al.: Bioorg. Med. Chem., 13, 301 (2004); Baeten, M., et al.: Adv. Synth. Catal., 358, 826 (2016)

Stability Air Sensitive, Hygroscopic, Moisture Sensitive
Applications N-Bromosuccinimide is a brominated succinimide used as a chemical reagent in radical substitution and electrophilic addition reactions in organic synthesis.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Alberola, A. et al.: Anal. Quim., 74, 761 (1968); Kobayashi, T. et al.: J. Chem. Soc. Perk. Trans., 12, 1372 (2001); Paulini, K. et al.: CHem. Ber., 127, 685 (1994);

Applications 2-Amino-3,5-dibromopyrazine is used in the preparation of conjugated polymers for neurotoxin detection. 2-Amino-3,5-dibromopyrazine is an intermediate in the preparation of rho kinase (ROCK) inhibitors.
References Thomas, J. et al.: Polym. Prepr., 46, 1211 (2005); Henderson, A.J. et al.: Bioorg. Med. Chem. Lett., 20, 1137 (2010);

Applications Borane-​2-​methylpyridine Complex is a reducing agent which may be used in the synthesis of deoxy0RNA substrates with use towards organic resistive memory devices.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Shih, C. et al.: Chem. Comm., 52, 13463 (2016);

Applications s-Triazine-1,3,5-triethanol (cas# 4719-04-4) is a compound useful in organic synthesis.

Applications (αR)-α-[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-4-hydroxy-benzeneacetic Acid is an intermediate used to prepare Cephalosporin derivatives with activities against both Gram-positive and Gram-negative bacteria.
References Albrecht, H., et al.: J. Med. Chem., 37, 400 (1994)

Applications 4-Vinylpyridine is used as a reagent in the synthesis of 4,4'-[9H-Carbazole-3,6-diyldi-(1E)-2,1-ethenediyl]bis[1-methyl-pyridinium Diiodide (C176070); a human quadruplex DNA stabilizer and telomerase inhibitor. 4-Vinylpyridine is also used as a reagent in the synthesis of spiro[cyclopropane[3H]indol]ones as polo-like kinase 4 inhibitors and orally bioavailable antitumor agents.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Yang, D., et al.: J. Phys. Chem. A, 111, 9224 (2007); Chang, C., et al.: J. Chin. Chem. Soc-Taip., 50, 185 (2003); Sampson, P.B., et al.: J. Med. Chem., no vol., no pp., (2014 ahead of print)

Applications 2-Ethylpyridine can be used to prepare Dimethindene Maleate (D460460). It is also used to study its effect on the proliferation and survival of human umbilical vein endothelial cells (HUVECs), HMVECs from lung, and NIH 3T3 cells.2-Ethylpyridine linked with silica is a popular stationary phase for chiral and achiral separations in supercritical fluid chromatography.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Richard, Y., et al.: Toxicol. Sci., 93, 82 (2006); Speybrouck, D., et a.: Curr. Topics in Med. Chem., 12, 1250(2012)

Applications 2,2':6',2''-Terpyridine (cas# 1148-79-4) is a useful research chemical.

Applications 5-[1-(Methylthio)ethyl]-2-trifluoromethylpyridine is an intermediate in the synthesis of Sulfoxaflor (S755005), a novel pesticide of the sulfoximine group and the only sulfoximine class of pesticide that act on the central nervous system.
References Sparks, T.C., et al. Pestic. Biochem. Physiol., 107, 1 (2013);

Applications 1-Amino-imidazolidine-2,4-dione (cas# 6301-02-6) is a useful research chemical.

Stability Light Sensitive
Applications 1-Vinyl-2-pyrrolidinone is used in the preparation of NMDA receptor antagonists. Also used in the synthesis of copolymers used to stabilize rhodium nanoclusters.
References Leeson, P. et al.: J. Med. Chem., 35, 1954 (1992); Mu, X. et al.: J. Am. Chem. Soc., 127, 9694 (2005);

Applications (2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic Acid 1,1-Dimethylethyl Ester is an intermediate used to prepare dipeptidyl peptidase IV (DPP-IV) inhibitors.
References Yoshida, T., et al.: Bioorg. Med. Chem., 20, 5705 (2012); Sakashita, H., et al.: Bioorg. Med. Chem., 15, 641 (2007)

Applications N-Octylpyridin-4-amine is used in the synthesis of antimicrobial agent Octenidine (O239150), as chelating agent.
References Bailey, D.M., et al.: J. Med. Chem., 27, 1457 (1984),

Applications 2-[[(3aR,4S,6R,6aS)-6-[7-Chloro-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]tetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]ethanol is used as a reagent in the synthesis of Ticagrelor (T437700); an orally active reversible P2Y12 receptor antagonist for the prevention of thrombosis.
References Springthorpe, B., et al.: Bioorg. Med. Chem. Lett., 17, 6013 (2007)

Applications 2-Aminopyridine (D6, 98%) (cas# 203784-57-0) is a useful research chemical.

Applications A useful starting material for Clindamycin analyogues, such as Pirlimycin.
References Birkenmeyer, R.D., et al.: J. Med. Chem., 27, 2, 216 (1984)

Applications 2-Hydrazino-1,3-benzoxazole

Applications 3-Morpholino-1-(4-(2-oxopiperidin-1-yl)phenyl)-5,6-dihydropyridin-2(1H)-one (cas# 545445-44-1) is a useful research chemical.

Stability Hygroscopic, forms hydrazoic acid on prolonged storage and on contact with water
Applications 1H-Imidazole-1-sulfonyl azide, HCl salt (cas# 952234-36-5) is a useful research chemical.

Applications Pyrazine 1,4-Dioxide (cas# 2423-84-9) is a compound useful in organic synthesis.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications N-Boc-piperazine-d8 is a useful synthetic intermediate for the preparation of labelled compounds.

Applications N-Boc-piperazine (cas# 57260-71-6) is a compound useful in organic synthesis.

Applications 1,2-Bis(2-(4,5-dihydro-1H-imidazol-2-yl)propan-2-yl)diazene Dihydrochloride is used as an initiator in the synthesis of ultra heigh relative molecular mass polyarcrylamide.
References Wang, L., et. al.: Hecheng Shuzhi Ji Suliao, 31, 37 (2014)

Applications 5-Nitro-1H-imidazole-1-ethanol (cas# 5006-68-8) is a compound useful in organic synthesis.

Applications N-Boc-4-hydroxypiperidine is a 4-hydroxypyridine with a boc protecting group used in the preparation of neurologically active agents and other pharmaceutical compounds.
References Kwon, Y.E. et al.: Bioorg. Med. Chem., 15, 6596 (2007); Knutsen, L.J.S. et al.: J. Med. Chem., 42, 3463 (1999);

Applications 3-Phenylpyrazin-2-ol has 2-Hydroxypyrazine(H952710), in its structure. 2-Hydroxypyrazine also used in the synthesis of potential antioxidants. Is also used in the preparation of antibacterial agents as 2-substituted pyrazine derivatives.
References Shi, J. et al.: J. Phys. Org. Chem., 22, 1038 (2009); Bonde, C. et al.: Ind. J. Hetero. Chem., 10, 271 (2001);

Impurity Terazosin EP Impurity O
Applications 1,4-Bis[(tetrahydro-2-furanyl)carbonyl]-piperazine (Terazosin EP Impurity O) is a useful synthetic intermediate. It is a derivative of Terazosin (T105000(P)), which is an α-1-adrenergicblocker related to prazosin.
References Patterson, S.E., et al.: J. Chromatog., 311, 206 (1984), Fort, F.L., et al.: Drug Chem. Toxicol., 7, 435 (1984), Lepor, H., et al.: J. Urol., 148, 1467 (1992),

Applications 6-(Dibutylamino)-1,3,5-triazine-2,4-dithiol (cas# 29529-99-5) is a useful research chemical.

Applications 2-Pyridineethanol is a metabolite of the anti-vertigo drug Betahistine (B324000).
References Botta, L. et al.: Acta Oto-Laryngol., 120, 25 (2000); Fossati, A. et al.: Pharmacol. Res., 43, 389 (2001); Konzett, H. et al.: J. Pharmacol. Exp. Ther., 178, 122 (1977);

Applications POLY(4-HYDROXY-2,2,6,6-TETRAMETHYL-1-PIPERIDINEETHANOL-ALT-1,4-BUTANEDIOIC ACID) (cas# 65447-77-0) is a useful research chemical.

Applications 6-Hydroxy-2,4,5-triaminopyrimidine, Sulfate (cas# 35011-47-3) is a compound useful in organic synthesis.

Applications 3-Amino-6-chloropyridazine (cas# 5469-69-2) is a compound useful in organic synthesis.

Applications (4S3-[(2R,5S)-5-(4-Fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-2-oxazolidinone is used in the synthesis of Ezetimibe (E975000), an antihyperlipoproteinemic; a cholesterol absorption inhibitor.
References Bankowski, K., et. al.: Przemysl Chemiczny, 91, 289 (2012); van Heek, M., at al.: J. Pharmacol. Exp. Ther., 283, 157 (1997); van Heek, M., at al.: Brit. J. Pharmacol., 129, 1748 (2000)

Applications Labelled Benzotriazole. BT is an anticorrosive agent well known for its use in aircraft deicing and antifreeze fluids but also used in dishwasher detergents. Benzotriazole is antiestrogenic in vitro but not in vivo.Isotopic purity: 97% d4, 3% d3.
References Rollinson, G., et al.: Biotechnol. Lett., 8, 303 (1986), Cancilla, D., et al.: Environ. Toxicol. Chem., 16, 430 (1997), Beresford, N., et al.: Toxicol. Appl. Pharmacol., 162, 22 (2000), Cornell, J., et al.: Environ. Toxicol. Chem., 19, 1465 (2000), Giger, W., et al.: Environ. Sci. Technol., 40, 7186 (2006),

Applications (2-oxo-4-phenylpyrrolidin-1-yl)acetic Acid (cas# 67118-34-7) is a useful research chemical.

Applications A labelled imidazole, a versatile heterocycle used in the preparation of various biologically active compounds such as the amino acid histidine and is present in many antifungal medication. It is also used extensively as a corrosion inhibitor on transition metals such as copper.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Arispe, N. et al.: Biophys. J., 95, 4879 (2008); Troesken, E.R. et al.: Endo. Res., 30, 387 (2004); Otmacic Curkovic, H. et al.: Corr. Sci., 51, 2342 (2009);

Applications methyl 1-(2,4-difluorophenyl)-3-phenyl-1H-pyrazole-5-carboxylate (cas# 1202030-37-2) is a useful research chemical.

Applications 5-Hydroxycytosine, is been identified as an anomalous base of phage H-17 DNA. It is also a monosubstituted cytosine, as nucleotide-base antimetabolite-type potential anticarcinogen.
References Khromov, I. S. Doklady Akademii Nauk SSSR, 240, 1486 (1978); Ladik, J., et al.: Magyar Kemiai Folyoirat, 76, 589 (1970);

Applications 3-Ethyl-2,4-dimethyl-1H-pyrrole is a important diagnostic compound for pyrrole disorder or pyroluria, an abnormality in biochemistry resulting in overproduction of pyrrole molecules and resulting in improper hemoglobin synthesis.
References Walsh, W.J., et al.: Physiol. Behav., 82, 835 (2004); Inrvine, D.G., et al.: Clin. Chem., 24, 2069 (1978);

Applications 4-(2-Hydroxyethyl)piperazin-2-one (cas# 23936-04-1) is a useful research chemical.

Applications Pyridine-2-aldoxime (cas# 873-69-8) is a useful research chemical.

Applications 3-Aminopiperidine-2,6-dione hydrochloride is a reagent for preparing lenalidomide that can induce ubiquitination and degradation of CK1α in del(5q) MDS. It can also be used to prepare phthalimide conjugates that can promote ligand-dependent target protein degradation.
References Kronke, J., et al.: Nature 523, 183 (2015); Liu C., et al.: Faming Zhuanli Shenqing CN 105348257 A 20160224 (2016); Rao, R., et al. : PCT Int. Appl. WO 2016024286 A2 20160218 (2016)

Applications 2,4-Dihydroxypyrrolo[2,3-d]pyrimidine (cas# 39929-79-8) is a compound useful in organic synthesis.

Impurity Cefoperazone EP Impurity C
Applications N-Methyl-5-tetrazolethiol (Cefoperazone EP Impurity C) is an impurity of Cefoperazone.
References Kitson, T., et al.: Biochem. J., 175, 83 (1978), Elenbaas, R., et al.: Clin. Pharmacol. Ther., 32, 347(1982),

Stability Light Sensitive
Applications 1-Vinylimidazole (cas# 1072-63-5) is a useful research chemical.

Applications N,N'-Di-4-pyridinyl-methanediamine is used to prepare bis(heteroaryl)-imidazolidinediones with oxalyl chloride.
References Ghandi, M., et al.: Synth. Comm., 37, 637 (2007)

Applications 5-phenyl-1,3-oxazolidin-2-one (cas# 7693-77-8) is a useful research chemical.

Applications 1-Piperidin-2-ylacetone Hydrochloride is an intermediate used in the synthesis of 1-Piperidin-2-ylacetone (B449983), which is a useful research chemical.

Applications 6-amino-5-chloro-2-cyclopropylpyrimidine-4-carboxylic Acid (cas# 858956-08-8) is a useful research chemical.

Applications 2-Amino-4-hydroxy-6-chloro-s-triazine is an aromatic intermediate compound useful for the preparation of substituted melamine, ammelides, and ammelines.
References Hapeman, C., et al.: J. Agric. Food Chem., 43, 1383 (1995), Garcia-Montano, J., et al.: Environ. Sci. Technol., 42, 6663 (2008),

Applications Used in oligonucleotide synthesis. Also a radiosensitizer of hypoxic cells in vitro.
References Nagao, Y., et al.: Chem. Pharm. Bull., 37, 1951 (1989), Takaoka, M., et al.: J. Vet. Med. Sci., 56, 341 (1994),

Applications 2-(Aminomethyl)pyrazine is a useful synthetic intermediate. It is used to synthesize pyrazolo[4,3-c]pyridinediones as orally bioavailable NADPH oxidase isoform 4 inhibitors for the treatment of idiopathic pulmonary fibrosis. It is also used to prepare pyrazolyl-indoles with the abilities to induce T-cell kinase inhibition.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Laleu, B., et al.: J. Med. Chem., 53, 7715 (2010); Velankar, A., et al.: Bioorg. Med. Chem., 18, 4547 (2010)

Stability Light Sensitive, Decomposes Rapidly in Air, Temperature Sensitive
Applications It has been examined as a ligand and as a pseudo-cyanide.

Applications 1,4-Bis(3-chlorophenyl)-piperazine acts as a reagent in the preparation of diarylalkylene diamines and N, N’,N’’-triaryldialkylene triamines.
References Mohr, R., et al.: From Eur. Pat. Appl. (1981), EP 31089 A1 19810701

Applications N-methyl-6-(2,2,2-trifluoroethoxy)-1,3,5-triazine-2,4-diamine (cas# 101988-70-9) is a useful research chemical.

Applications Piperonylic Acid is a compound closely mimicking the structure of transcinnamic acid involved in the phenylpropanoid pathway in plant physiology.
References Schalk, M. et al.: Plant Physiol., 118, 209 (1998);

Applications 1-(1-phenylpropan-2-yl)-1H-pyrrole-2-carboxylic acid (cas# 1432680-68-6) is a useful research chemical.

Applications α-(2,3-Dimethylphenyl)-α-methyl-1H-imidazole-5-methanol is used as a reagent in the synthesis of Medetomidine (M203250); an α2-adrenergic agonist. Also a sedative and analgesic.
References Scheinin, M., et al.: Br. J. Clin. Pharmacol., 24, 443 (1987); Stenberg, D., et al.: J. Vet. Pharmacol. Ther., 10, 319 (1987); Virtanen, R., et al.: Eur. J. Pharmacol., 150, 9 (1988); Cullen, L.K., et al.: Br. Vet. J., 152, 519 (1996); Chen, W., et al.: Faming Zhuanli Shenqing. CN 101921234 A 20101222. Dec 22, 2010

Applications N~2~,N~2~-diallyl-1,3,5-triazine-2,4,6-triamine (cas# 91-77-0) is a useful research chemical.

Applications 1-(2,3-Epoxypropyl)-2-nitroimidazole is an intermediate in the synthesis of Pimonidazole-d10 (P447814). Isotope labelled Pimonidazole (P447813) is an effective and nontoxic hypoxia detection reagent. Pimonidazole forms adducts with thiol groups in proteins, peptides and amino acids. It abels hypoxic tumor cells in vivo. Also labels hypoxic mesenchymal stem cells in mouse bone marrow.
References Sato et al.: PLoS One 11 e0165946 PMID:(2016); Bennewith et al.: Cancer Res. 62 6827 PMID: 12460894, (2002)

Applications 5-Chlorobenzotriazole is a good inhibitor; it decreases anodic and cathodic reaction rates, and the highest inhibition efficiency was 91.2%. The inhibitory effect of 5-chlorobenzotriazole is explained by the formation of the layer on the copper surface.
References Simonovic, Ana T., et al.: ACS Omeg., 5, 12832-12841 (2020);

Applications Orotic Acid Monosodium Salt is used in the formation of a complex with lanthanium(III) which displats cytotoxic activity on different tumor cell lines.Also, it is the unlabeled form of Orotic Acid-15N2 Monosodium Salt (O691517), which is an intermediate used in the synthesis of Orotic Acid-15N2 Monohydrate (O691504), which is a labeled analogue of Orotic Acid Monohydrade (O691500), which is used in the preparation of therapeutic agents for chronic obstructive pulmonary disease (COPD) treatment.
References Kostova, I., et al.: Int. J. Curr. Chem., 1, 271-280 (2010)

Applications 2-[4-[2-(1-Piperidinyl)ethoxy]benzoyl]benzoic Acid is a research reagent with antispasmodic
References Bal-Tembe, S., et al.: Bioorg. Med. Chem., 5, 1381(1997);Punekar, N., et al.: Biotech. App. Biochem, 14, 378 (1991);

Applications Used as a reagent for the synthesis of acridine (A190900) derivatives and fibrinogen receptor antagonists.
References Yang, D. et al.: Macromol., 35, 5304 (2002); Harrison, R.J. et al.: Bioorg. Med. Chem. Lett., 9, 2463 (1999);

Applications Used for preparation of thieno-tetrahydropyridines useful as class III antiarrhythmic agents.
References Bahekar, R., et al.: Bioorg. Med. Chem., 15, 5950 (2007), Hayakawa, M., et al.: Bioorg. Med. Chem. Lett., 17, 2438 (2007),

Applications 2,4-Diaminopyrimidine 3-N-Oxide is a useful organic synthetic reagent for the preparation of pyrimidines and in the making of hair loss and skin care compositions.
References von, A. S., et al.: Science of Synthesis, 16, 379 (2004); Mahe, Y., et al.: Skin Pharmacol., 9, 177 (1996); Hocquaux, M., et al.: From PCT Int. Appl. (1992), WO 9201437 A1 19920206

Applications 1-Piperidineethanol (cas# 3040-44-6) is a compound useful in organic synthesis.

Applications 2,6-diethylpyrazine (cas# 13067-27-1) is a useful research chemical.

Applications 1-(4-Hydrazinylbenzyl)-1H-1,2,4-triazole (cas# 212248-62-9) is a useful research chemical.

Impurity Azathioprine EP Impurity C
Applications 5-Chloro-1-methyl-4-nitroimidazole (cas# 4897-25-0) is a compound useful in organic synthesis.

Applications 2,4-Dimethyl-1H-pyrrole-3-carboxylic Acid Ethyl Ester is used in the preparation of blue pyrrole dyes. 2,4-Dimethyl-1H-pyrrole-3-carboxylic Acid Ethyl Ester is also used as an intermediate in the synthesis of receptor tyrosine kinase (RTK) inhibitors and their metabolites.
References Treibs, A. et al.: Lieb. Ann. Chem., 2, 289 (1978); Elsinghorst, P. et al.: J. Lab. Comp. Radiopharm., 52, 360 (2009);

Impurity Esomeprazol EP Impurity A/ Omeprazole EP Impurity A
Applications 5-Methoxy-2-mercaptobenzimidazole (Esomeprazol EP Impurity A) is used in the synthesis of COX-2 inhibitors
References Frechette, S., et al.: Bioorg. Med. Chem. Lett., 18, 1502 (2008), Zhang, R., et al.: Eur. J. Med. Chem., 44, 3771 (2009),

Applications 3-Chloropyridazine (cas# 1120-95-2) is a useful research chemical.

Applications Hydrochloride salt of N-(β-Chloroethyl)piperidine is used in the inhibition of sickle-cell hemoglobin.
References Stubbins, J. et al.: Eur. J. Med. Chem., 14, 219 (1979);