APIs pour la recherche et les impuretés

Stability Light Sensitive Applications 3β-Hydroxydesogestrel is a metabolite of Desogestrel (D296875), a progestogen with low androgenic potency. References Viinikka, L., et al.: Eur. J. Clin. Pharmacol., 15, 349 (1979), Bergink, E.W., et al.: J. Steroid Biochem., 14, 175 (1981)

Applications Flecainide-d4 is the isotope labelled analog of Flecainide. Flecainide is an antiarrhythmic (class IC). References Hodess, A.B., et al.: J. Cardiovasc. Pharmacol., 1, 427 (1979), Somani, P., et al.: Clin. Pharmacol. Ther., 27, 464 (1980), Alessi-Severini, S., et al.: Anal. Profiles Drug Subs. Excip., 21, 169 (1992)

2-Phenylbutyric acid is a product of the oxidation of phenylacetic acid by flavus. 2-Phenylbutyric acid is an inhibitor of contactor reactions that use α1-acid glycoprotein as a chromatographic support. It has been shown to inhibit the reaction mechanism of extractants (e.g., butamirate citrate) with enantiomeric compounds (e.g., creatine). It also inhibits subclinical mastitis in cows and fatty acid synthesis, leading to decreased cholesterol synthesis in humans.

Applications Omeprazole Magnesium is an inhibitor of gastric secretion. Used as an anttiulcerative. References Muller, P., et al.: Arzneimittel-Forsch., 33, 1685 (1983), Wallmark, B., et al.: Biochim. Biophys. Acta., 778, 549 (1984), Morii, M., et al.: J. Biol. chem., 268, 21553 (1993), Ritter, M., et al.: Br. J. Pharmacol., 124, 627 (1998)

Please enquire for more information about WH-4-025 including the price, delivery time and more detailed product information at the technical inquiry form on this page

Sitagliptin impurity E is an inhibitor of dipeptidyl peptidase-4 (DPP-IV) that is used as a hypoglycemic agent. Sitagliptin impurity E has been shown to increase the glucose-lowering effect in diabetic patients with type 2 diabetes mellitus. It is also effective in reducing postprandial glucose and insulin levels. Sitagliptin impurity E has been shown to increase the concentration of insulin in plasma for up to 24 hours after administration, which suggests that it may be useful for the treatment of metabolic disorders such as obesity and type 2 diabetes mellitus.

N-Formyl Saxagliptin is an analytical standard for HPLC. It is used as a drug development and API impurity in the pharmaceutical industry. It was synthesized by reacting formaldehyde with the amino acid L-glutamic acid, followed by purification to remove any other contaminants. The CAS number for this chemical is 57847-82-0.

Applications MK-0822 is a newly developed bone-targeting dual action pro-drug for osteoporosis and bone metastasis. It is also an inhibitor of cathepsin K, an enzyme involved in bone resorption. References Arns, S., et al.: Bioorg. Medn. Chem., 20, 2131 (2012); Cusick, T., et al., J. Bone. Mineral. Rsch., 27, 524 (2013);

Applications Antibiotic substance produced by Streptomyces spp. Antiamebic; antibacterial; antirickettsial. 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 Weiss, et al.: Antibiot. Chemother., 7, 374 (1957), Goldenthal, E.I., et al.: Toxicol. Appl. Pharmacol., 18, 185 (1971),

Aripiprazole dimer is a drug product that is used for analytical purposes. It is an impurity standard for the research and development of drugs. The CAS number for this compound is 1797986-18-5. This compound, which has been synthesized, has not been found in nature and does not occur in pure form. Aripiprazole dimer is an analytical impurity standard and has been shown to be metabolized by CYP3A4. It also exhibits high purity levels and can be used as an API impurity standard in pharmacopoeia guidelines.