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Related News: Because API companies usually adopt a different synthetic route from the original research company, compared with the drug itself, the impurities contained in the generic drug API have not been verified by the original drug for many years of use and require more careful testing and control.84163-77-9 API (Active Pharmaceutical Ingredient) means the active ingredient which is contained in medicine.4-Methyl-3-(trifluoromethyl)aniline CAS:65934-74-9 DMF is the main management method for APIs in developed countries in Europe and the United States. Under the DMF system, API companies can submit DMF filing documents to the regulatory authority at any time, but the regulatory authority will not conduct technical reviews on them. When the drug is administered, the regulatory authority will associate and review the drug substance and the preparation.1131-52-8 The quality of the drug substance determines the quality of the preparation, so its quality standards are very strict. Countries around the world have formulated strict national pharmacopoeia standards and quality control methods for their widely used drug substances.At the same time, through years of imitation and advanced technology learning, more and more domestic companies have participated in the field of highly original and characteristic APIs.