APIs for research and impurities

Pentalenolactone O is a natural product, which is used as an analytical standard for the determination of metabolites in drug development and research. It can be synthesized from pentalenolactone A by hydrogenation with Raney nickel catalyst. Pentalenolactone O is also a synthetic compound that has been developed as an impurity standard for HPLC analysis. The purity of this compound is high, and it complies with the requirements of pharmacopoeias such as USP and BP.

Stability Hygroscopic Applications Amino acid structurally related to γ-Aminobutyric Acid (GABA), designed to cross the blood brain barrier. Used as an anticonvulsant. References Vollmer, K.-O. et al.: Arzneimittel-Forshc., 36, 830 (1986), Saletu, B., et al.: Int. J. Clin. Pharmacol. Ther. Toxicol., 24, 362 (1986)

Applications Oseltamivir is an orally active inhibitor of influenza virus neuraminidase; converted in vivo to the active acid metabolite. An antiviral drug. It is a COVID19-related research product. References Oliyai, R., et al.: Pharm. Res., 15, 1300 (1998), Kim, C.U., et al.: Med. Chem. Res., 8, 392 (1998), Hayden, F.G., et al.: N. Engl. J. Med., 341, 1336 (1999), Treanor, J.J., et al.: J. Am. Med. Assoc., 283, 1016 (2000)

Impurity Diosmin EP Impurity D Applications 6-Iodo Diosmin (Diosmin EP Impurity D) is a Diosmin (D485200) impurity.

Applications A metabolite of Roxithromycin (R700850). References Lindstrom, T., et al.: Antimicrob. Agents Chemother., 37, 265 (1993), Shimada, T., et al.: J. Pharmacol. Exp. Ther., 270, 414 (1994), Yamazaki, H., et al.: J. Toxicol. Sci., 21, 215 (1996),

Applications Phenethylamine-d4 is labelled phenethylamine (P321335) which is a psychoactive drug and stimulant that affects dopamine levels. It uses a mechanism of inverse agonism at the D2 dopamine receptor to achieve this effect. Phenylethylamine (P321335) functions as a neuromodulator or neurotransmitter in the mammalian central nervous system. 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 Wilson, J. et al.: J. Neurochem., 77, 493 (2001); Sotnikova, T. et al.: J. Neurochem., 91, 362 (2004); Schmitt, K. et al.: J. Neurochem., 112, 1605 (2010); Sabelli, H., et al.: Biol. Psychiat., 11, 481 (1976)

Applications 7-Chloro-8-quinolinol is an intermediate used in the preparation of qunoline derivative for the treatment of neuropathy. References Gershon, H., et al.: Antimicrob. Agents Chemother., 1, 373 (1972), Gershon, H., et al.: J. Med. Chem., 17, 824 (1974), Gershon, H., et al.: J. Pharm. Sci., 80, 542 (1991),

Apixaban impurity 2 is a drug product that is used as an impurity standard in the research and development of drugs. It is also used as a synthetic intermediate in the synthesis of other drugs. Apixaban impurity 2 has been shown to be pharmacologically active, with the ability to inhibit bacterial growth by binding to DNA-dependent RNA polymerase. This compound is not toxic to mammalian cells at high concentrations, but has been shown to have some effects on the central nervous system, including depression of spontaneous motor activity and decrease in locomotor activity. Apixaban Impurity 2 is soluble in acetone and chloroform, but insoluble in water. The molecular weight of this compound is not known, but it can be determined using HPLC. Apixaban Impurity 2 has CAS number 2187409-01-2 and its molecular formula is C21H22N2O4S.