


WELINK is a Hongkong based company with state-of-the-art chemical manufacturing facilities in mainland of China. Our mission is to help our customers achieve the highest quality at the lowest costs, and in the quickest time for their drug discovery and development programs
As one of the leading manufacturers of phase transfer catalysis (PTC) and cationic surfactant, We provide a comprehensive range of quaternary ammonium salts, quaternary phosphonium salts, crownethers, quaternary ammoniu... More
Tetraethyl ammonium bromide(71-91-0), Tetrapropyl ammonium bromide(1941-30-6), Benzyl triethyl ammonium chloride(56-37-1), Triphenyl phosphine(603-35-0), Tetraphenyl phosphonium bromide(2751-90-8), Methyl triphenyl phosphonium bromide(1779-49-3), Ethyl triphenyl phosphonium bromide(1530-32-1), Propyl triphenyl phosphonium bromide(15912-75-1), Butyl Triphenyl Phosphonium Bromide(1779-51-7), MethylTriphenyl phosphonium Chloride(1031-15-8)