Beijing Chengyu Specialty Chemical Co., Ltd. founded in 1995 with approximately 80 employees, is located in the beautiful Shilou High-tech Chemical Zone of Fangshan District of Beijing City.  Our facility which covers an area of 36,000 square  meters, which is within convenient traveling distance from the Liulihe Railway Station, Jingshi Expressway, Beijing Capital International Airport, Tianjin Port, and Yanshan Petrochemical Company.

As the Chinese biggest manufacturer of Indole chemicals, Chengyu specializes in the development and manufacture of curatorial intermediates compounds such as Indoles, Quinolines, and Imidazoles.

Chengyu has experienced scientists and highly skilled engineers who specialize in applying advanced equipment, providing process control services and quality assuring testing instruments to meet our customer needs in improved product quality and increased productivity.

Chengyu has gained the quality certification of ISO9001-2000; the environmental management of ISO14001-2004; the occupational healthy security management of OHSAS18001-1999 and "Beijing High-tech Enterprise Certificate".

	Main Equipment Capacity:
		Volume of Reaction Kettle: 50-25000L
		Temperature: Meeting the chemical reaction at -30-350°C
		Vacuum of vacuumed distilling equipment: Reaching 1-5 mm Hg
		Pressure of pressure kettle: Meeting the demand of 15 MPa for the reaction at  below    350°C
		Volume of two-cone rotating vacuum drier: 3,000 L
		Daily treatment capacity of organic waste water: 200 tons.