APIs for research and impurities

Phenobarbital impurity B is an analytical reference material that is available as a HPLC standard and a CAS No. 58042-96-9. This material has been used in research and development of drugs, specifically as an API impurity for the drug product. Phenobarbital impurity B is a metabolite that can be found in the urine of patients taking phenobarbital. It has shown to have pharmacopoeia standards. Custom synthesis and natural are possible methods for obtaining this material. Synthetic is the most common method for generating this substance.

Please enquire for more information about [p-(Benzyloxy)phenyl]acetic acid tert-butyl ester including the price, delivery time and more detailed product information at the technical inquiry form on this page

(R,R)-Dihydro bupropion hydrochloride is a synthetic compound that has been developed for the treatment of depression and nicotine addiction. This drug is metabolized by liver enzymes to form two metabolites: (S,S)-dihydro bupropion and (R,S)-hydroxybupropion. The pharmacopoeia defines the purity of this product as > 98%, with an impurity standard of 1%. This compound is not found in nature. It is available as a research and development grade product or as a custom synthesis upon request.

5-Oxo pitavastatin is a research and development drug product that is synthesized by custom synthesis. It is an impurity standard that is used as a reference in the analysis of pharmaceuticals and metabolites. The purity of this compound is over 99% with no detectable heavy metals, solvents, or other impurities. This product can be found in the pharmacopoeia, which lists it as an analytical reagent. 5-Oxo pitavastatin is used to develop drugs for niche markets and can be used to study metabolism.

Regorafenib metabolite M5 is a drug product that is custom synthesized by our company and has high purity. It can be used in metabolism studies, drug development, and pharmacopoeia due to its natural origin. It is also a synthetic compound that can be used as an impurity standard or research and development standard in HPLC.

2,2-Bis-[3-(1-methylpiperidin-4-yl)-1H-indol-5-yl]ethanesulfonic acid methylamide is an analytical standard for HPLC. It is a synthetic substance and has been shown to be a metabolite of the drug product, 2,2-bis-(3-(1-methylpiperidin-4-yl)indol-5-yl)ethanesulfonic acid methylamide. The following are descriptions for the 6 products: 6 Fluoro 3 Indoxyl Beta D Galactopyranoside Rifapentine is an anti tuberculosis drug that belongs to the class of rifamycins. It is the most active of the rifamycins for the treatment of tuberculosis. Rifapentine inhibits bacterial growth by binding to DNA dependent RNA polymerase, thereby preventing transcription and replication. The high frequency

Stability Hygroscopic Applications A labelled glucocorticoid, antiasthmatic (inhalant); antiallergic (nasal). References Florey, K., et al.: Anal. Profiles Drug Subs., 1, 397 (1972), Bernstein, I.L., et al.: Chest, 81, 20 (1982),

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Applications A novel active labelled metabolite of the anti-cancer drug Tamoxifen (T006000). It showed potent ER binding property, blocked estrogen stimulated growth of breast cancer cell and half maximal inhibition of estrogen responsive gene expression in ER pos. human breast cancer cell line. 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 Furr, B., et al.: Pharmacol. Ther., 25, 127 (1984), Leonessa, F., et al.: Cancer Res., 54, 441 (1994), Stearns, V., et al.: Lancet, 360, 1851 (2002), Rae, J., et al.: Pharmacogenetics, 13, 501 (2003),

Applications Labelled Clarithromycin (C559750). Clarithromycin is a semi-synthetic macrolide antibiotic. Clarithromycin is a derivative of Erythromycin (E650000). References Benson, C., et al.: Eur. J. Clin. Microbiol., 6, 173 (1987), Boyanova, L., et al.: J. Med. Microb., 61, 85 (2012), Lin, Z., et al.: Toxicol. Sci., 126, 114 (2012),

Applications Labelled Phencyclidine (P295500). Anesthetic (intravenous). Controlled substance (depressant). 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 Chen, G., et al.: J. Pharmacol. Exp. Ther., 127, 241 (1959), Bailey, K., et al.: J. Pharm. Pharmacol., 28, 713 (1976), Balster, R.L., J. Psychedelic Drugs., 10115 (1978), Johnson, K.M., et al.: Annu. Rev. Pharmacol. Toxicol., 30, 707 (1990),

N-Methyl-4-phenylpiperidine is a synthetic drug that acts as a stimulant. It is a structural analog of the neurotransmitter acetylcholine and has been shown to have similar effects in knockout mice. N-Methyl-4-phenylpiperidine is metabolized by hydrolysis of the amide group, leading to the formation of alphaprodine and hydroxyphenylacetic acid. This drug has been shown to inhibit dopamine and serotonin uptake in rats, which may be related to its psychostimulant effects. Clinical pharmacology studies have shown that this drug can increase blood pressure, heart rate, and respiration rates in humans.