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Shenyang Tongyuansu Co., Ltd. is located in Hunnan biomedicalincubator park in Shenyang,is a high-tech enterprise which engaged in research and development, produceand sale of fine chemical intermediates. The main products are pyridazineseries, pyridine series, thioxanthene series, pharmaceutical raw material seriesand other fine chemical intermediates more than 200 kinds of products. Thecompany has complete modern laboratory, pilot test workshop, is able tocomplete fluorination reaction, chlorination reaction, bromination reaction,nitration reaction, diazotization reaction, hydrogenation reaction, cyanationreaction, lithiation reaction, ultra low temperature reaction, high temperatureand pressure reaction and so on. The company has a complete quality inspectioncenter, possess imported gas chromatograph and liquid chromatography,polarimeter, moisture meter, melting point measuring instrument and a varietyof chemical analyzers. We can provide quality products and efficient servicefor our customers. We look forward to cooperate with the knowledgeable people ofvarious circles of society and to create a new future together!