Introduce: Profile: Shanghai KDS Chemical Co., Ltd. offers heterocyclic compounds. Our products include pyridine, pyrimidine, quinoline, thiophene & indol derivatives. Our pyridine products include 2,5-dichloropyridine, 2,3-dimethoxypyridine, 4-nitro-2,3-lutidine-n-oxide, 2,3-dimethyl-4-nitropyridine-n-oxide, 2-methoxy-5-bromopyridine, 5-bromo-2-methoxypyridine, 2-ethoxy-5-bromopyridine, 5-bromo-2-ethoxypyridine, 2-cyano-5-bromo-pyridine, 5-bromo-2-pyridinecarbonitrile, and 5-bromo-2-cyanopyridine. Our pyrimidine includes 2,4-dichloropyrimidin, 2-amino-4-chloropyrimidine, 4-amino-2-chloropyrimidine, 2-chloro-4-aminopyrimidine, and 2,4-diaminopyrimidine. We also offer custom synthesis, contract manufacturing. Our OEM services include new product discovery & development, laboratory, and commercial production.