Highly quality  Factory   

Chemwill Asia co.,Ltd is one of the leading manufacturer  in CHINA. 

Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary,  Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place. 

Our R&D team masters core technology for process-design of target building block as well as Tailor-made fine chemicals. Our manufactory specialised in extreme temperature conditions (-100ºC to +300ºC), hydrogenations reaction under high pressure, suzuki coupling reaction, photochemical reaction, Mitsunobu reactions, enantioselective reactions and asymmetric synthesis. 

Think Chemistry,Think CHemWill

Factory Plant Address:
High-Tech Industrial park,Chemical Economical Development Zone,Xuzhou, Jiangsu-Province, P.R.China

Shanghai office: (Export Department)
Address: 16FL., INDUSTRY & COMMERCIAL BUILDING, NO.45 YAN’AN ROAD(E), 200002, SHANGHAI, CHINA

Ms Mary Chi  -  Sales manager 

Vitamin B12, VB12 for short, also known as cobalamin, one of B vitamins, is a complex organic compound containing cobalt, cobalt trivalent is located in the center of the porphyrin-like golum ring plane. It is the largest and most complex vitamin molecule that has been discovered so far, and the only vitamin that contains metal ions. Its crystallization is red, so it is also called red vitamin. Plants do not contain VB12 and cannot make it. Liver is the best source of VB12, followed by milk, meat, eggs, fish, etc. VB12 is an essential coenzyme in the synthesis of RIbonucleic acid and DEoxyribonucleic acid. Deficiency of VB12 can cause pathological changes of the nervous system such as peripheral nerve and central encephalopathy. The archetypal family of natural cobalt coordination compounds, known as corrinoids. The analogue of vitamin B12 differs only in the cobalt beta ligand and is called cobalamin. It's made almost entirely by bacteria. Dietary sources include fish, meat, liver and dairy products; There is little or no cobalamin in plants. Methylcobalamin and cobalamin act as cofactors of enzymes that are converted by the body into their biologically active forms. Severe deficiency can lead to megaloblastic anemia and/or nerve damage Chemicalbook. The discovery of vitamin B12 was first attributed to work in the treatment of a malignant anemia named after Addison, an English physician. In 1926, Minot and Murphy discovered that it could be cured by ingestion of large amounts of raw liver, for which they won the 1934 Nobel Prize in Physiology and Medicine. Following Minot and Murphy's discovery, this malignant anaemia was successfully cured with liver concentrate. In 1948, Riches of The United States and Smith and Parker of the United Kingdom respectively extracted liver concentrate.

Application:

1. Medical and health applications

2. Application in feed.

3. In other aspects of application in developed countries,VB12 and other substances used in cosmetics; In the food industry,VB12 can be used as a colorant in ham, sausage, ice cream, fish sauce and other foods. In family life, the VB12 solution absorption Chemicalbook attached to activated carbon, zeolite, non-woven fiber or paper, or made of soap, toothpaste, etc.; Can be used for toilet, refrigerator, etc. deodorant, eliminate the smell of sulfide and aldehyde; VB12 can also be used for environmental dehalogenation of organic halides, a common pollutant in soil and surface water