Benzalkonium Bromide
AKA “Benzododecinium bromide, Sterinol, N-Benzyl-N, N-dimethyldodecan-1-aminium bromide, Bacfor BL, Lauralkonium bromide, Sinnoquat BL 80, Sinnoquat BL 95”
Synthetic
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Ingredient Facts
Benzalkonium bromide
AKA: Benzododecinium bromide, Sterinol, N-Benzyl-N, N-dimethyldodecan-1-aminium bromide, Bacfor BL, Lauralkonium bromide, Sinnoquat BL 80, Sinnoquat BL 95
Synthetic · Antimicrobial | Antistatic | Deodorant | Preservative | Surfactant - Cleansing · EWG: 3
Plant-Derived
Preservative
Cleanser
Synthetic
Clean
A gentle preservative that keeps products fresh while helping to reduce odor and static. It also works as a natural cleanser, making it ideal for deodorants and cleansing formulas.
Formula
C21H38BrN
Mol. Weight
384.40
CAS #
91080-29-4
Form
Liquid
Plant-Derived
Synthetic. Synthesized from benzyl chloride and alkyldimethylamines, belonging to the quaternary ammonium compound family. Produced through quaternization reactions that combine alkyl halides with tertiary amines under controlled conditions.
Function
Antimicrobial | Antistatic | Deodorant | Preservative | Surfactant - Cleansing
Benefits
Fights Bacteria
Traditional Use
A quaternary ammonium salt developed in the 20th century as a synthetic preservative and antimicrobial agent. Created to replace natural antiseptics and provide broad-spectrum preservation in cosmetics and personal care products.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Caution
EWG Score3
CIR Safety Findings
all-shades-safe
Concentration Guide
3%
0%4%
Reg. Limit
EU regulatory limit: 3%. Avoid contact with the eyes Source: EU Cosmetics Regulation (EC) 1223/2009, Annex III (Restricted Substances), Entry 65
Regulatory Agencies
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR