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Benzalkonium chloride solution

≥50% (via Cl), 50% in H2O

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Alkylbenzyldimethylammonium chloride
CAS Number:
MDL number:

Quality Level


≥50% (via Cl)
50% in H2O



InChI key


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General description

Benzalkonium chloride is a quaternary ammonium salt in ocular drug products.


Benzalkonium chloride (BAC) can be used as:       
  • A cationic surfactant in chemical polymerization reactions.       
  • A phase-transfer catalyst for the quantitative determination of sulfide in the whole blood sample by extractive alkylation technique using GC-MS.  

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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A simple, optimized method for the determination of sulphide in whole blood by GC-MS as a marker of bowel fermentation processes
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Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences, 770(1-2), 255-259 (2002)
Effects of benzalkonium chloride on growth and survival of Chang conjunctival cells
De Saint Jean M, et al.
Investigative Ophthalmology & Visual Science, 40(3) (1999)
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