No.571 Qingchuan Street, Xihu District, Hangzhou, Zhejiang, China 浙ICP备17041244号 :+86 571-87216831



Hangzhou Cyclic Chemical Co., Ltd. mainly produces the heterocyclic compounds and photoinitiator products, and also provide custom synthesis from gram to kilogram scale, including intermediates, building blocks and scaffolds. In addition, we offer process research and development of synthetic routes for impurities and metabolites.

Our custom synthesis service are offered under confidentiality agreement & intelligence property protection, including, but not limited to the methods, synthesis route and other customers’ requirements. Never patent infringement is the attitude of Hangzhou Cyclic Chemical Co., Ltd. to patents protections. Therefore, our products are for scientific research and development purpose only, not offered for sales in zones and countries where the sales of such product constituted patents infringement. The liability for patents checking and patents infringement is exclusive at buyer's risk.

We provide high-quality products, very competitive prices, fast delivery time and good service. For more information, please send email to