Antibiotiques

Impurity Piperacillin EP Impurity B
Stability Hygroscopic, Temperature Sensitive
Applications Piperacilloic Acid (Piperacillin EP Impurity B) is a degradation product of Piperacillin (P479950), a new β-lactam antibiotic.
References Waxman, D.J., et al.: J. Biol. Chem., 255, 3964 (1980), Waley, S.G., et al.: Biochem. J., et al.: 205, 631 (1982),

Stability Hygroscopic
Applications A new constituent of bacterial polyhydroxyalkanoic acids.
References Bollard, M., et al.: Toxicol. Appl. Pharmacol., 204, 135 (2005), Slupsky, C., et al.: Anal. Chem., 79, 6995 (2007),

Applications Surfactin is a lipopeptide antibiotic and biosurfactant.

Applications 2,3-Bis[(acetyloxy)methyl]-1-oxoquinoxalin-1-ium-4(1H)-olate is an antibiotic.
References Marrero-Ponce, Yovani, et al.: Bioorg. & Med. Chem., 13(8), 2881-2899 (2005)

Applications Dicresulene Hydrate is an impurity of Policresulen (P688085), an ideal drug for purulent endometritis and bovine mastitis of the animals.
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 Xie, R., et al.: Zhejiang Nongye Daxue Xuebao., 24, 259-262 (1998)

Herbicidin C is an antibiotic, which is derived from a microbial source, specifically from certain strains of actinobacteria. This compound functions as an inhibitor, interfering with specific metabolic pathways within target organisms. Its mode of action involves disrupting the synthesis of critical proteins, which are essential for cell survival and growth.

5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate is an antibacterial compound with a broad spectrum of activity against Gram-positive and Gram-negative bacteria. It is active against strains resistant to other antibiotics, such as, tetracycline and penicillin. 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate has been shown to be effective in vitro against Campylobacter jejuni - the most common cause of bacterial gastroenteritis in humans. The compound also inhibits the growth cycle of Campylobacter jejuni by arresting the cells at the G1 phase. The molecule has been shown to inhibit DNA synthesis in E. coli and S. typhimurium with IC50 values of 1 ÎŒM and 0.8 ÎŒM respectively. This molecule has been tested for its surface active properties and it can be used as an additive in personal care products for improved wetting and spreading on surfaces. The compound is also researched for its antifungal efficacy against Candida albicans by inhibiting the growth cycle of the fungus.

Inhibitor of cell-wall synthesis; carbapenem class

Epioxytetracycline is a degradation product of the antibiotic oxytetracycline. It has been found in wastewater.

Inhibitor of RNA synthesis

Tobramycin used to treat severe infections with gram-negative bacteria and it is often applied in combination with beta-lactams. It has similar antimicrobial effects to gentamicin and is effective against all Enterobacteriacae, but more effective than gentamicin against P. aeruginosa, which is why it is often used for gentamicin-resistant strains, especially in the case of cystic fibrosis.

Second-generation lipoglycopeptide antibiotic