Introduce: Profile: Shanghai Targsense Scientific Co., Ltd. provides fine chemicals for pharmaceutical research and industry. We offer benzenes, pyridines, piperidines, biphenyls, piperazines, nortropines, isoquinolines, aldehydes, amines and carboxylic acids. benzene includes 2-ethyl-6-fluorobenzoic acid, ethyl 2-amino-6-ethylbenzoate, 6-ethylsalicylic acid, 2-amino-6-ethylbenzoic acid, 2-ethylbenzoic acid and methyl 2-amino-6-ethylbenzoate. pyridine includes 2-amino-6-ethoxypyridine, 2-amino-6-fluoropyridine, 2-amino-6-hydroxylpyridine, 4-bromo-2,6-diethylpyridine, 2-amino-6-bromopyridine, 2-acetamido-6-aminopyridine and 2-amino-6-chloropyridine. Isoquinoline includes 5-amino-3-methylisoquinoline, 3-methyl-5-nitroisoquinoline, 3-fluoroisoquinoline, 3-methylisoquinoline, 3-chloroisoquinoline, 3-aminoisoquinoline, 3-isoquinolinecarboxylic acid and 3-hydroxyisoquinoline.