Spiro[9H-fluorene-9,9'-[9H]xanthene]-2,7-diamine, N2,N7-bis(4-methoxyphenyl)-N2,N7-bis(spiro[9H-fluorene-9,9'-[9H]xanthen]-2-yl)-

Wuhan Circle Star Chem-medical Technology Co.,Ltd is located in wuhan, the central city of China, the core of the Changjiang river economic belt and known as the "thoroughfare of nine provinces".Mainly engaged in electronic chemicals, pharmaceutical intermediates, pesticide intermediates, ultraviolet absorbent, food additives and other fine chemical products research and development, production, sales and operation or agency of various products and technology import and export business. The company has two laboratories (located in wuhan and ningbo), a Chinese workshop (located in wuhan), and two amplification production bases (located in zhejiang and hubei).The company employs a number of postdocs, doctors and professors from wuhan university, huazhong agricultural university, huazhong university of science and technology and other famous universities in China to form the r&d team, and also has its own excellent sales team. The company always adhere to the "technology first, customer first, quality after-sales service" professional philosophy and enterprise spirit.The company can provide excellent products, technical support and perfect after-sales service, and ensure the quality and timely delivery regardless of business size.In order to establish a good reputation among domestic and foreign customers.