Supply heterocyclics such as pyridines, pyrimidines, isoquinolines, quinolines, oxadiazoles, carbazoles. We are specialized in surfur (mercapto) heterocyclics.

Shanghai Worldyang Chemical Co.,Limited is a company committing to contract synthesis and production of fluoro-products, boric acid, heterocyclic compounds, intermediates APIs. Up now, we have established one research center three manufacturing bases ...

We are manufacturer and our lab is located in Hunan province. Our company\'s various chemical raw material products have stable reliable quality, it mainly sold to pharmacy company health care abroad, like USA, Canada, UK, Brazil, Netherlands, Ireland, New ...

quinolines indoles pyrrolines pyridines pyrimidines imidazoles and other heterocyclic compounds derivatives