murphyMonoethanolamine
AKA: 2-aminoethanol, 141-43-5, 2-Aminoethan-1-ol, 2-Hydroxyethylamine, Colamine, Aminoethanol
Synthetic
Skin Conditioner
Not Clean
OriginMonoethanolamine is produced from ethylene oxide and ammonia through a chemical reaction process. The resulting compound is synthesized via nucleophilic addition of ammonia to ethylene oxide.
Monoethanolamine is a first generation monoethanolamine with antihistaminic property. Ethanolamine competes with free histamine for binding at the histamine (H)-1 receptor thereby acting as an inverse agonist that combines with and stabilizes the inactive form of the H1-receptor thereby shifting the equilibrium toward the inactive state. This leads to a reduction of the negative symptoms brought on by H1-receptor binding.
Solubility greater than or equal to 100 mg/mL at 68 °F (NTP, 1992)
Formula
C2H7NO
Mol. Weight
61.08
CAS #
141-43-5
Form
Liquid
State
Ethanolamine appears as a clear colorless liquid with an odor resembling that of ammonia. Flash point 185 °F. May attack copper, brass, and rubber. Corrosive to tissue. Moderately toxic. Produces toxi
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Buffering
Anti-Inflammatory
Boosts Collagen
Wound Healing
Maintains optimal pH
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Caution
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR