Hangzhou Liben Chemical Co., Ltd. is a company engaged in the research, development, and production of pharmaceutical intermediates. It possesses comprehensive experimental facilities and advanced production equipment, along with a strict management system. The company has mature technologies in high-pressure hydrogenation, ammoniation, and high-pressure synthesis, and welcomes cooperation in high-pressure hydrogenation and ammoniation. The main products of the company include: 5-Ethyl-2-pyridine ethanol, perhydroacenaphthene, cis-2,6-dimethylpiperazine, trans-2,5-dimethylpiperazine, N-ethylpiperazine, N-methylpiperazine, and 2-methyl-5-ethylpyridine.