Riboflavin, also known as vitamin B2, is a water-soluble vitamin, but slightly soluble in water. At 27.5 ℃, the solubility is 12mg/100ml. Soluble in sodium chloride solution, soluble in dilute sodium hydroxide solution, soluble in alkaline solution

Promethazine is a phenothiazine antihistamine, which has a longer effect than diphenhydramine, and also has obvious central sedative effect, but is weaker than chlorpromazine; It can enhance

Common pharmaceutical intermediates.Entecavir entecavir intermediate:Step 1:3-cyclopenten-1-ol, 2-[(phenylmethoxy) methyl]-, (1R trans) CAS no:188399-48-6.Step 2: (1S,2R,3S,5R)-2-(benzyloxymethyl)-6-oxabicyclo[3.1.0]hexan-3-ol CAS No:117641-39-1

Pharmaceutical intermediates are an important part of fine chemical industry, and their development level is a symbol of a country's chemical modernization level. For many years, the pharmaceutical

The limited output of new drugs in the market makes it more and more difficult to develop new products of pharmaceutical intermediates, and the competition of traditional products is becoming more...

With the improvement of China's food and drug regulatory system, foreign-funded pharmaceutical enterprises will increasingly be unable to exercise the "green light privilege" in their business development in China as in the past