Carbohydrazide, 4-Hydroxy Tempo manufacturer / supplier in China, offering 1-Chloro-4- (trifluoromethyl) Benzene CAS 98-56-6 4-Chlorobenzotrifluoride, 2, 6-Pyridyldicarbinol CAS 1195-59-1 2, 6-Pyridinedimethanol, 1- (3-Dimethylaminopropyl) -3-Ethylcarbodiimide Hydrochloride CAS 25952-53-8 EDC. HCl and so on.