Heterocycles with Nitrogen (N)

Applications 5-Bromo-2-hydroxypyrimidine (cas# 38353-06-9) is a compound useful in organic synthesis.

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 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 Succinimide is a reagent that is used in the synthesis of Lumiflavin (L473900), which is a toxic photolysis product of vitamin B2 (R415000).
References Zhao, X. et al.: Chemosphere, 63, 1116 (2006); Litke, S.V. et al.: Khim. Fiz., 10, 48 (1991); Ye, W. et al.: Guang. Yaox. Xueb., 12, 175 (1996);

Applications Labelled nitro substituted piperazine.

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

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

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-phenyl-1,3,5-triazine-2,4-diamine (cas# 91-76-9) is a useful research chemical.

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),

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

Applications 5-(1H-Pyrrol-1-yl)-1H-benzo[d]imidazole-2-thiol (cas# 172152-53-3) is a useful research chemical.

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 2,5,6-Triaminopyrimidin-4(1H)-one sulphate (cas# 39267-74-8) is a useful research chemical.

Applications 2-Amino-4,6-dimethylpyrimidine is a bioactive compound.
References Phan, D. C., et al.: Hoa Hoc Va Cong Nghiep Hoa Chat, 8, 30 (2001); Shen, Z., et al.: Yingyong Huagong, 37, 721 (2008)

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 An intermediate in the preparation of Piperidinyloxy free radical derivatives.
References Irie, O., et al.: Bioorg. Med. Chem. Lett., 18, 5280 (2008),

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

Applications An Intermediate in the synthesis of risperidone and iloperidone.

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

Stability Air Sensitive, Light Sensitive
Applications 3,4-DIETHYLPYRROLE (cas# 16200-52-5) is a useful research chemical.

Applications α-Phenyl-2-pyridineacetamide (cas# 7251-52-7) is a compound useful in organic synthesis.

Applications 1,2,3,6-Tetrahydropyridine (cas# 694-05-3) is a useful research chemical.
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 Piperonyl Isobutyrate (cas# 5461-08-5) is a useful research chemical.

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

Applications 2-(Ethylthio)-1H-benzimidazole is the active substance or the active ingredient in the synthesis of the drug Metaprot. Performs a transplacental function: daily administration of bemithyl (20 mg/kg) from 6 th to 16 th day of pregnancy in female rats led to the decrease in fetal death after the implantation and increased fetal body weight.
References Kibal'chich, D. A., et al.: Eksperimental'naya i Klinicheskaya Farmakologiya, 74, 30 (2011); Bugaeva, L. I., et al.: Eksperimental'naya i Klinicheskaya Farmakologiya, 70, 40 (2007).

Applications N-(chloroacetoxy)succinimide is a N-hydroxysuccinimide ester of a simple carboxylic acid. N-(chloroacetoxy)succinimide is used in the preparation of organometallic complexes and other synthetic probes for the labeling of proteins.
References Salmain, M. et al.: Bioconj. Chem., 4, 425 (1993); Nonaka, H. et al.: J. AM. Chem. Soc., 129, 15777 (2007);

Stability Hygroscopic
Applications 1H-Pyrrolo[3,2-b]pyridine-2,3-dione (cas# 153072-89-0) is a useful research chemical.

Applications 2-(4,6-Diphenyl-1,3,5-triazine-2-yl)-5-[(hexyl)oxy]phenol is used as a light stabilizer/UV absorber for polyethylene phthalate polymers intended for use in contact with food.
References Food and Drug Administration, HHS: Fed. Reg., 63, 43874 (1998); Fechine, G.J.M. et al.: Polym. Degrad. Stab., 75, 153 (2002);

Applications 2-Mercaptopyridine N-oxide sodium salt is a bidentate complexing agent used to chelate transition metals at a pH range of 0.7-7.4. 2-Mercaptopyridine N-oxide sodium salt is also used as a selective absorptiometric reagent in the determination of palladium.
References Edrissi, M., et al.: J. Mater. Sci.-Mater. El., 22, 328 (2011); Edrissi, M., et al.: Microchem. J., 16, 526 (1971); Thakur, M., et al.: J. Nucl. Med., 26, 510 (1985)

Applications 5-Hydroxy-N-methyl-2-pyrrolidinone is a metabolite of N-methylpyrrolidone (NMP).
References Payan, J., et al.: Drug Metab. Dispos., 30, 1418 (2002), Carnerup, M., et al.: Food Chem. Toxicol., 43, 1441 (2005), Angerer, J., et al.: Toxicol. Sci., 93, 3 (2006),

Impurity Minoxidil EP Impurity B
Applications 6-Chloro-pyrimidine-2,4-diamine (cas# 156-83-2) is a compound useful in organic synthesis.

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 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

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

Applications 3,6-Bis(4-chlorophenyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (cas# 84632-65-5) is a useful research chemical.

Applications Ethyl (5-Ethyl-2-pyridinyl)acetate (cas# 99986-02-4) is a compound useful in organic synthesis.

Applications 3-(Methoxycarbonyl)pyridine-5-boronic acid, pinacol ester

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 4'-Bromo-2,2':6',2''-terpyridine (cas# 149817-62-9) is a useful research chemical.

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

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

Applications An impurity arising in the synthesis of zoledronic acid (Z623500).

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

Applications L-Dihydroorotic acid is used as a reactant in the preparation of long acting Gonadotrophin-releasing hormone (GnRH) antagonist containing p-ureido-phenylalanine.
References Jiang, G., et al.: J. Med. Chem., 44, 453 (2001);