Triethylammonium

Triethylammonium (CAS 17440-81-2) is the protonated form of triethylamine, a cationic species in solution and a counterion in salt formulations and buffer systems. Also known as TEAH.

Where is Triethylammonium used?

• Pharmaceutical manufacturing: ion-pair reagents
• HPLC method development: separation of polar and ionizable drug compounds
• Biotech and life sciences: triethylammonium acetate buffers for oligonucleotide purification and chromatographic analysis of nucleic acids
• Agrochemical formulations: counterion in herbicide and pesticide salt forms, influencing solubility and bioavailability of active ingredients in crops
• Water treatment: pH adjustment and corrosion inhibition in industrial cooling systems
• The chemical is supplied commercially as salts rather than the free cation.

Good to know: Most commonly triethylammonium acetate or triethylammonium bicarbonate in liquid or solid form.