Human chorionic gonadotropin (HCG), a polypeptide hormone produced by the human placenta, is composed of an alpha and a beta sub-unit. The alpha sub-unit is essentially identical to the alpha sub-units of the human pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone…

A vitamin/enzyme cofactor found in milk, eggs, malted barley, liver, kidney, heart, leafy vegetables. Richest natural source is yeast. Occurs in the free form only in the retina of the eye, in whey, and in urine; bioactive forms occurring in tissues and cells are riboflavin monophosphate and…

Adenosine is a purine nucleoside comprising a molecule of adenine attached to a ribose sugar molecule moiety via a β-N9-glycosidic bond. It plays an important role in energy transfer. It is an endogenous purine nucleoside that modulates physiological process wherein cellular signaling by…

Cefoperazone sodium salt is a broad spectrum third generation cephalosporin antibiotic that has similar antimicrobial activity to ceftazidime. It is active against Pseudomonoas aeruginosa and it has enhanced activity against Enterobacteriaceae and Bacteroides sp. in the presence of the…

Pancreatin is a digestive enzyme produced by the pancreas and delivered to the small intestine for the hydrolysis of complex nutrients. Pancreatin contains enzymatic components including trypsin, amylase and lipase, ribonuclease, and protease, produced by the exocrine cells of the porcine pancreas.…

Sodium phosphate is a reagent with very high buffering capacity that is widely used in molecular biology, biochemistry, and chromatography. Sodium phosphate occurs in several forms: monobasic (NaH₂PO₄), dibasic (Na₂HPO₄), and tribasic…

Pancreatin is a mixture of several digestive enzymes produced by the exocrine cells of the porcine pancreas and delivered to the small intestine for the hydrolysis of complex nutrients. It is a broad-spectrum protease composed of amylase, trypsin, lipase, ribonuclease and protease. Pancreatin…

Kanamycin sulfate is an antimicrobial agent effective against Gram-negative and Gram-positive bacteria and mycoplasma. It binds to the 70S ribosomal subunit, inhibits translocation, and elicits miscoding. Cross-resistance occurs between kanamycin and neomycin, framycetin, and paromomycin, and…

Gentamicin sulpahte is an aminoglycoside antibiotic complex produced by fermentation of Micromonospora purpurea or M. echinospora. It is a mixture of 3 major components designated as C1, C1a, and C2. Gentamicin is used as the sulfate salt. Each component consists of five basic nitrogens and…

D-Pantothenic acid is an essential vitamin (except in horses, ruminants). Pantothenic acid is involved in a number of biological reactions including: A precursor in the biosynthesis of coenzyme A, production of energy, catabolism of fatty acids and amino acids, synthesis of atty acids,…

Tobramycin is an aminoglycoside, broad-spectrum antibiotic produced by Streptomyces tenebrarius. It is effective against gram-negative bacteria, especially the Pseudomonas species. Tobramycin has been used: to study the effect of tobramycin on bacteriophage infected biofilms to study…