Polyquaternium-1/PQ-1 CAS: 75345-27-6

white powder or light yellow liquid. Used as pharmaceutical raw materials, an important bacteriostatic agent of eye drops. 


product description


Polyquaternium-1/PQ-1 is a detergent-based preservative derived from BAK. PQ-1 was formulated by Alcon in the mid-1980s as a preservative for contact lens storage solutions. Today, it is increasingly used as a preservative in glaucoma eye drops and artificial tears


AppearanceClarify,amber,viscous liquid
Smellwithout stimulation
Molecular weight6500-57000Da
Free amine<2.0%
Water solubilitywhole soluted

Package: solution:  1KG/bottle, powder: 100G/bag.

Storage: in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.

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Polyquaternium-1/PQ-1 CAS: 75345-27-6