Founded in 2017, Anhui Changhua Chemicals Co., Ltd is a subsidiary of Yangzhou Xinhua Chemical Industry Co., Ltd. Anhui Changhua’s factory is in Anqing Hi-Tech Development Zone, which is a national level chemical industry park. Our products include Carbamates and Alkyl Piperazines, which are widely used in pharmaceutical industries. Current main products include: Carbamate: Methyl Carbamate, Ethyl Carbamate, Butyl Carbamate, Methyl Methylcarbamate, Hydroxypropyl Carbamate. Alkyl Piperazines: N-Methylpiperazine, N-Ethylpiperazine, N,N-Dimethylpiperazine