Benzalkonium chloride is a quaternary ammonium compound and it is the most commonly used antimicrobial preservative. It was initially used in hard contact lens solutions but is now ubiquitous. Currently, it can be found in most topical multi-use ophthalmic preparations.
Benzalkonium chloride, also known as alkyldimethylbenzylammonium chloride and by the trade name Zephiran, is a type of cationic surfactant. It is an organic salt classified as a quaternary ammonium compound. ADBACs have three main categories of use: as a biocide, a cationic surfactant, and a phase transfer agent. Wikipedia
ATC code: D08AJ01 (WHO)
Density: 0.98 g/cm3
Flash point: 250 °C (482 °F; 523 K) (if solvent based)
Hazard statements: H302, H312, H314, H410
NFPA 704 (fire diamond): 3 0 0
Signal word: Danger
Solubility in water: Very soluble
Benzalkonium Chloride
$498.00 – $17,500.00