Steapyrium Chloride
AKA “14492-68-3, 1-[2-oxo-2-[[2-[(1-oxooctadecyl)oxy]ethyl]amino]ethyl]pyridinium chloride, Quaternium 7, Quaternium-7, Emcol E 607S, EINECS 238-501-3, UNII-C9842BS3SX, C9842BS3SX, CATEMOL WPC
Ingredient
Ingredient Facts
Steapyrium chloride
AKA: 14492-68-3, 1-[2-oxo-2-[[2-[(1-oxooctadecyl)oxy]ethyl]amino]ethyl]pyridinium chloride, Quaternium 7, Quaternium-7, Emcol E 607S, EINECS 238-501-3, UNII-C9842BS3SX, C9842BS3SX, CATEMOL WPC
Ingredient · Antimicrobial · EWG: 1
Plant-Derived
Preservative
Clean
1-[2-Oxo-2-[[2-[(1-oxooctadecyl)oxy]ethyl]amino]ethyl]pyridinium chloride
Formula
C27H47ClN2O3
Mol. Weight
483.10
CAS #
14492-68-3, 1341-08-8
Form
Liquid
See origin →
Functions
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Antistatic
Fights Bacteria
Traditional Use
Synthetic quaternary ammonium compound developed for cosmetics. Created as a hair and skin conditioning agent in the mid-to-late 20th century, designed to provide static control and conditioning benefits in hair care formulations.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Final Report on the Safety Assessment of Polyquaternium-7
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Steapyrium Chloride and Lapyrium Chloride
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Polyquaternium-7
European Commission
EU Cosmetic Ingredient Database (CosIng)
Polyquaternium-73
European Commission
EU Cosmetic Ingredient Database (CosIng)
Steapyrium Chloride
European Commission
EU Cosmetic Ingredient Database (CosIng)
Polyquaternium-7
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Polyquaternium-73
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Steapyrium Chloride
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Allergic contact dermatitis from laureth-9 and polyquaternium-7 in a skin-care product.
Gallo R, Basso M, Voltolini S, Guarrera M
Contact dermatitis, 2001
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR