Lípidos

Impurity Atorvastatin EP Impurity E
Stability Hygroscopic
Applications (3S,5S)-Atorvastatin Sodium Salt (Atorvastatin EP Impurity E) is a selective, competitive HMG-CoA reductase inhibitor. The only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.
References Kearney, A.S., et al.: Pharm. Res., 10, 1461 (1993), Heinonen, T.M., et al.: Clin. Ther., 18. 853 (1996), Whitfield, L.R., et al.: Eur. J. Drug Metab. Pharmacokinet., 25, 97 (2000)

Applications 20(S)​-​Ginsenoside Rh1 is an anti-cancer agent found in the leaves of ginseng.
References Zheng, M. et al.: Biomed. Res., 26, 646 (2015);

Applications (S)-Equol and R-Equol are metabolites of the soy isoflavones Daidzein (D103500) and Genistein. Both have significant biological actions.
References Heinonen, S., et al.: Anal. Biochem., 274, 211 (1999), Setchell, K., et al.: J. Nutr., 132, 3577 (2002), Thigpen, J., et al.: Comp. Med., 53, 607 (2003), Yee, S., et al.: Food Chem. Toxicol., 46, 2713 (2008),

Applications (25R)-26-Hydroxycholesterol is a desmosterol metabolite that is found in the brain. 26-Hydroxycholesterol has been used as a biomarker for carbon cycling in the northwestern Mediterranean Sea.
References Meljon, A., et. al.: J. Lipid Res., 53, 2469 (2012); Christodoulou, S., et. al.: Marine Chem., 113, 25 (2009)

Applications Labelled Chenodiol (Chenodeoxycholic acid). A major bile acid in many vertebrates, occurring as the N-glycine and/or N-taurine conjugate. With other bile acids, forms mixed micelles with lecithin in bile which solubilize cholesterol and thus facilitates its excretion. Fcilitates fat absorption in the small intestine by micellar solubilization of fatty acids and monoglycerides. Anticholelithogenic. Epimeric with Ursodiol.
References Danzinger, et al.: N. Engl. J. Med., 286, 1 (1972), Iser, J.H., et al.: Drugs, 21, 90 (1981), Tint, G.S., et al.: Gastroenterology, 91, 1007 (1986),

Applications (+)-cis-Diltiazem-d3 HCl (acetoxy-d3) (CAS# 1217860-13-3) is a useful isotopically labeled research compound.

Applications 2-Stearoyl-rac-glycerol is a biomarker of metabolic responses to hepatotoxicants and carcinogens.
References Broadhurst, D., et al.: Metabolomics, 2, 171 (2006); Shi, J., et al.: Nat. Biotechnol., 25, 930 (2007)

Applications 3-Oxo-5β-cholanoic Acid is a steroid compound with pharmacological activity. It is a bile acid. Also used in the preparation of lithocholic acid derivatives used as proteasome regulators.
References Iqbal, M. et al.: Steroids. 53, 413 (1989); Deyashiki, Y. et al.: Biochm. J., 282, 741 (1992);

Applications A phospholipid drug with antineoplastic and antiprotozoal/antifungal properties, also acts as an Akt inhibitor, and under investigation as a potential therapy against HIV infection.
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 Chugh, P., et al al.: Retrovirology, 5, 11 (2008), Dorio, T., et al.: Antimicrob. Agents Chemother., 52, 2855 (2008),

Applications Aglicone of saponin dioscin. Diosgenin exists in some food supplements and herbal medicines and lowers plasma cholesterol by increasing fecal cholesterol excretion. It can be converted to Pregnenolone and Progesterone.
References Cayen, M., et al.: J. Lipid Res., 20, 162 (1979), Nervi, F., et al.: J. Clin. Invest., 74, 2226 (1984), Davis, H., et al.: J. Biol. Chem., 279, 33586 (2004), Brown, J., et al.: Biochem. J., 406, 273 (2007),

Applications A Cholesterol (C432501) metabolite. Lathosterol (indicating cholesterol synthesis) and Sitosterol (indicating cholesterol absorption) also decreased with deteriorating health. Low Lathosterol, Sitosterol (S497050), and Cholesterol (C432501) predicted mortality additively and independently of each other.
References Chyou, P., et al.: Age Ageing, 29, 69 (2000), Schatz, I., et al.: Lancet, 358, 351 (2001), Bjorkman, M., et al.: Eur. J. Endocrinol., 158, 749 (2008),

Applications Ursodeoxycholic Acid-d4 is a deuterated form of Ursodeoxcholic Acid (U850000), which is used as an anticholelithogenic. Ursodeoxcholic Acid is an epimer with Chenodiol with respect to the hydroxyl group at C7. Ursodeoxycholic Acid-d4 was used as an internal standard for rapid quantification of bile acids by liquid chromatography-tandem mass spectrometry.
References Tint, G.S., et al.: Gastroenterology, 91, 1007 (1986), Poupon, R.E, et al.: N. Engl. J. Med., 324, 1548 (1991), MacKenzie, P., et al.: J. Biol. Chem., 283, 36205 (2008); Scherer, M., et al.: J. Chromatogr. B, 877, 3920 (2009(

Applications Labelled (-)-Norgestrel, an emergency contraceptive. Levonorgestrel is safe, tolerated and effective in emergency contraception in woman.
References Fotherby, K., et al.: J. Steroid Biochem., 19(1C), 817 (1983), Stanczyk, F. Z., et al.: Contraception, 42, 67 (1990), Bednarek, P., et al.: Drugs, 67, 2478 (2007),

Applications An impurity of Griseofulvin (G787500).
References Oda, T., et al.: Chem. Pharma. Bull., 34, 858 (1986),

Applications 1-O-Dodecylglycerol is a antibacterial agent which stimulates autolysin activity in Streptococcus faecium ATCC 9790. It is also found to be synergistic with amphotericin B against fungi.
References Ved, H., et al.: J. Biol. Chem., 259, 8115 (1984); Haynes, M., et al.: Antimicro. Agents Chemother., 38, 1523 (1994)

Applications rac 3-Hydroxydecanoic Acid (cas# 5561-87-5) is a compound useful in organic synthesis.

Impurity Lovastatin EP Impurity E; Lovastatin USP Related Compound A
Applications 4a,5-Dihydro Lovastatin (Lovastatin EP Impurity E; Lovastatin USP Related Compound A) is an impurity in Lovastatin (L472225) bulk drug.
References Bone, E.A., et al.: Bioorg. Med. Chem. Lett., 2, 223 (1992), Houck, A., et al.: Talanta, 40, 491 (1993),