Profile: Changzhou Lon Chemical Co., Ltd. specializes in heterocycle derivatives, advanced pharmaceutical intermediates and fine chemicals. fluorobenzene series include 2-chloro-4-fluoro-5-nitrophenol , 4-nitro-3-flouorobenzoic acid , 3-fluoro-4-hydroxybenzoic acid, 2,6-difluoro-4-hydroxybenzoic acid , 3-fluoro-4-nitrophenol and 5-fluoro-2-hydroxyacetophenone. Pyrazine series include 2-methylpyrazine, 2-methylpyrazine-5-carboxylic acid , 2,5-dimethylpyrazine , 2,3,5-trimethylpyrazine, 2-ethyl-3-methyl pyrazine and 2,3-pyrazinedicarboxylic acid.