Profile: Shijiazhuang Old Bridge Chemicals Co., Ltd. is a manufacturer of pharmaceutical intermediates. We mainly provide cysteamine hydrochloride of different specifications, 4- methylimidazole, and theramification. We are an ISO 9001:2000 certified company. Our 4-methylimidazole is used as main intermediate to compose many medicines, and is the main material in the manufacture of cimetidine which cures duodenal ulcer, gastric ulcer, and alimentary tract hemorrhage. It is also used to produce central nervous system medicines, and metal preservatives. Our methylglyoxal is used as main material to produce cimetidine; it is widely used in acetic acid, anodyne, anti-cancer drugs, hypertension drugs, cosmetics, and perfume of tobacco industry.