Vitamin B12, also known as cobalamin, is a generic term for a class of porphyrin-containing compounds. VB12 is an important water-soluble vitamin. It participates in the form of coenzymes and promotes the synthesis of DNA and proteins. In the a

 Steroid hormones, also known as steroid hormones. Has a very important medical value. It has a clear role in maintaining life and regulating sexual function, in terms of body development, immune regulation, skin disease treatment and birth cont

 7ACA is a key intermediate for cephalosporins and has become the protagonist of the international antibiotic market. According to sales statistics, β-lactam antibiotics based on cephalosporins and penicillins are the fastest growing, accou

Vitamin B5, one of the B vitamins, gets its name from its widespread distribution in plants and animals.It is white powder, it is one of 13 kinds of vitamins that the human body needs, it is a kind of water-soluble vitamin, have the function of makin

 Vitamin C is one of the most important vitamins in human nutrition, and it plays an important role in the regulation of substance metabolis. Vitamin C is widely distributed in nature and is found in fresh fruits and vegetables. Separation of vi

 Macrolide antibiotics are a general term of antibacterial drugs with a 12-16 carboester ring in their molecular structure. They are rapid bacteriostatic agents and are mainly used for antibacterial and other pharmacological effects. The resin

 Iohexol is a raw material for water-soluble, non-ionic X-CT contrast agents produced by pharmaceutical companies. The trade name for this contrast agent is Orna Parker. This contrast agent is usually injected into the vein before CT diagnosis,

 Β-lactam antibiotics are a wide variety of antibiotics, including penicillin and its derivatives, cephalosporin, monoamide rings, carbapenem, etc., which are currently a class of antibiotics. The adsorption resin has obvious advantages in

Nucleotide, a compound consisting of a mixture of a purine base or a pyrimidine base, ribose or deoxyribose, and phosphoric acid. Also known as nuclear niacin. The nucleotide and the desalting nucleotide are amphiphilic compounds containing a base ca

 Arginine accounts for about 6% in human hair, and there is almost no loss of arginine in the mother liquor after extracting cystine. Therefore, after the mother liquor is desalted, the arginine is separated by exchange with a cation exchange re