Profile: Nanjing BiorgChem Co,. Ltd. is a supplier and distributor of fine chemicals, building blocks & pharmaceutical intermediates for pharmaceutical & biotech companies. We specialize in custom synthesis of complex organic molecules. Our products include pyridine, pyrazine, pyridazine, thiophene, thiazole, indole, indazole, pyrazole, quinoline and benzene series products. Our pyridine series products include 4-bromo-2-chloropyridine, 4-bromo-2-fluropyridine, 3-amino-4-bromopyridine, 4-nitropyridine n-oxide, 4-nitro-2-picoline, 2-nitro-3-hydroxypyridine and 3-methyl-1h-indazol-5-ol. Our pyrazine series products are 3-methylpyrazin-2-amine, methyl 3-aminopyrazine-2-carboxylate, 5-chloropyrazin-2-ol, 4,5-dibromopyridazin-3[2h]-one and 4,5-dimethylpyridazine-3,6-diol.