Pharmaceutical Standards

Cholesterol Myristate is a fatty acid that is found in the outer membrane of cells. It has been shown to be an effective cationic surfactant and to form films at low concentrations. Cholesterol Myristate is used in the manufacture of anti-infective ointments, lotions, creams, and other skin care products. It has also been used as a film-forming polymer for cosmetic applications such as mascara and lipsticks. The phase transition temperature for cholesterol myristate is about -10°C. This means that it will not crystallize until the temperature drops below 10°C. The human serum stability of cholesterol myristate is low because the hydroxyl group interacts with water molecules, causing hydrolysis and oxidation reactions.

O-tert-Butyl-L-allo-threonine is a methionine derivative that has been shown to be expressed in the human liver and kidney. It is synthesized by coupling of the n-terminal tryptophan with O-tert-butyl L-allo-threonine, which is then followed by a transpeptidation reaction. The resulting product can be used as an efficient insulin precursor for the production of human insulin. The efficiency of this process depends on the spacer length and reaction time, which can be optimized for each synthesis.

Vanillylacetone is a natural compound that belongs to the group of phenolic compounds. It is an inhibitor of the enzyme cyclase, which is involved in the biosynthesis of fatty acids and sterols. Vanillylacetone has been shown to have anti-tumor effects in mice with induced tumors. It also inhibits the growth of bacteria, fungi, and protozoa by inhibiting DNA synthesis. Vanillylacetone has been shown to inhibit nuclear DNA replication and toll-like receptor signaling pathways.

Benzoyl-L-tyrosine ethyl ester is a copolymer of benzoyl-L-tyrosine and polyethylene glycol. It is a mesoporous material that has an ability to bind with DNA and inhibit the activity of enzymes such as proteases, trypsin, and chymotrypsin. Benzoyl-L-tyrosine ethyl ester inhibits the enzymatic activity of these enzymes by binding to the active site on their surface; it also inhibits the production of inflammatory mediators. This product has been shown to have potent inhibitor properties in vitro, but its efficacy in vivo has not been evaluated.

N-(Ketocaproyl)-L-homoserine lactone is a fatty acid analog of the bacterial signaling molecule homoserine lactone and a potent inducer of cell lysis. The synthesis of this analog has been demonstrated in vitro with Escherichia coli, Bacillus subtilis, and Streptococcus pneumoniae. It is active against human pathogens including Helicobacter pylori and Staphylococcus aureus as well as mammalian tissue. N-(Ketocaproyl)-L-homoserine lactone induces cell lysis by binding to the DNA polymerase to inhibit its activity and terminate DNA synthesis. This inhibition leads to an accumulation of unprocessed RNA, which induces apoptosis in bacterial cells.