Profile: Yangzhou Tianhe Pharmaceutical Co., Ltd. is a manufacturer of raw materials of pharmaceutical intermediates. We are an ISO 9001 and ISO 14001 certified company. Our product line includes benzimidazoles, sulfa-drugs and intermediates. Our sulfa-drugs include sulfachloropyrazine sodium monohydrate, sulfamethoxypyrazine, sulfacetamide sodium, sulfamethoxypyridazine and sulfachlorpyridazine sodium. We supply intermediates such as 2,3-dichloropyrazine, 2,6-dichloropyrazine, 3,4-dichloro-6-nitroaniline, 5-amino-2',2,3-trichloro-4'-nitrodiphenyl ether and 5-amino-3-cyano-1-(2,6-dichloro-4- trifluoromethylphenyl)-4- trifluoromethylthiopyrazole.