The dialkyl ester of triethanol ammonium methyl sulphate (Chemical Abstracts Service [CAS] number 91-995-81-2) was obtained as Stepantex VRH90 (Stepan Co., Northfield, IL), which was found to be 85.5% TEA-Quat. The di-(hardened tallow fatty acid) ester of 2,3-dihydroxypropyl-trimethyl ammonium chloride (CAS 19467-38-0) was synthesized and was found to be approximately 83% HEQ. Both materials were stored under ambient conditions before being made up at the required concentrations in either distilled water or petrolatum.
Dermatitis. 2007;18(1):32-39. © 2007 American Contact Dermatitis Society
Cite this: Evidence That Two Alkyl Ester Quaternary Ammonium Compounds Lack Substantial Human Skin-Sensitizing Potential - Medscape - Mar 01, 2007.