Welink International Enterprise Ltd. specializes in manufacturing Phase Transfer Catalysis (PTC) and Cationic Surfactant. We provide a comprehensive range of Quaternary Ammonium Salts, Quaternary Phosphonium Salts, Crown Ethers, Quaternary Ammonium Hydroxide and other series. We offer our customers the highest purity in fine chemical products. We are accustomed to supplying quaternary products in the pharmaceutical & electronics industry, petrochemicals production, biological industry, electroplating, textile industry, architecture as well as cosmetic industry.

Our wide range of Quaternary Ammonium Salt products include Triethyl Amine Hydrobromate, 3-Ethylamine Hydrobromide, 2-Ethylamine Hydrobromide, 2-Bromoethylamine Hydrobromide, Bis-2-Bromoethyl Amine Hydrochloride, Bis-2-Chloroethyl Amine Hydrochloride, Ethyl Amine Hydrochloride, Diethyl Amine Hydrochloride, Triethyl Amine Hydrochloride And Trimethyl Amine Hydrochloride. Our Hydroxide products include Benzyl Trimethyl Ammonium Hydroxide, Tetrabutyl Ammonium Hydroxide, Tetrapropyl Ammonium Hydroxide, Tetraethyl Ammonium Hydroxide and Tetramethyl Ammonium Hydroxide. Benzyl Trimethyl Ammonium Hydroxide is a colorless transparent liquid.

Quaternary Ammonium Salt Series

Product Name

Molecular Formula
Tetraoctylammonium bromide	(C8H17)4NBr
Tetrabutylammonium perchlorate	C16H36NClO4
Lauryl benzyldimethylammonium chloride	C21H38ClN
Benzyl tributyl ammonium bromide	C19H34NBr
Benzalkonium Bromide	C21H38BrN
Stearalkonium chloride	C17H40NCl
Benzalkonium Chloride	C21H38ClN

Hydrochloride Series

Product Name

Molecular Formula
Triethyl amine hydrobromate	(C2H5)3N.HBr
3-ethylamine hydrobromide	(C2H5)3N.HBr
2-ethylamine hydrobromide	(C2H5)2N.HBr
2-Bromoethylamine hydrobromide	BrCH2CH2NH2HBr
Ethyl amine hydrochloride	C2H5NH2.HCl
Diethyl amine hydrochloride	(C2H5)2NH.HCl
Triethyl amine hydrochloride	C6H16NCl

Phosphonium Compound Serial Products

Product Name

Molecular Formula
Benzyl-Triphenyl Phosphonium Chloride	C25H22PCl
MethylTriphenyl phosphonium iodine	CH3IP(C6H5)3
Butyl Triphenyl phosphonium Chloride	C4H9ClP(C6H5)3
Ethyl Triphenyl phosphonium Chloride	C2H5ClP(C6H5)3
MethylTriphenyl phosphonium Chloride	CH3ClP(C6H5)3
Triphenyl phosphine	(C6H5)3 P
Dodecyl-Triphenyl Phosphonium Bromide	C12H25BrP( C6H5)3

Hydroxide Series

Product Name

Molecular Formula
Benzyl trimethyl ammonium hydroxide	C10H17NO
Tetrabutyl ammonium hydroxide	C16H37NO
Tetrapropyl ammonium hydroxide	C12H29NO
Tetraethyl ammonium hydroxide	C8H21NO
Tetramethyl ammonium hydroxide	C4H13NO