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Thermo Scientific™ Pierce™ Triethylamine (TEA), Sequencing Grade

Bottles of 99.5%-pure TEA (MW 101.2, CAS 121-44-8) liquid (sold by weight); for HPLC use as an ion-pairing agent in reverse-phase peptide separations.

Brand:  Thermo Scientific™ 25108

Additional Details : Weight : 1.81440kg Transport : UN number : 1296 Chem class : 3 Pack group : II

Product Code. 11831385

  • € 185.00 / 100g
Estimated Shipment: 23-04-2024
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Thermo Scientific™ Pierce Triethylamine (TEA) is a high-purity solvent that can be used in certain HPLC protocols, such as weak anion exchange to resolve certain tryptic peptides on a reverse-phase column.

Triethylamine is an ion-pairing reagent that alters selectivity in reverse-phase HPLC separations. By pairing with peptides, it effectively sharpens peaks, resulting in improved peak resolution.


  • >99.5% triethylamine purity, allowing sensitive peptide detection at low UV wavelengths in reverse-phase HPLC peptide separation systems Packaged in amber glass bottles with protective PTFE-lined fluorocarbon caps for reagent integrity
  • Has a low UV absorbance to provide the most sensitive detection across all wavelengths

Properties of Triethylamine

  • Alternate names TEA, Diethylethanamine
  • Molecular formula C6H15N
  • Molecular weight 101.19
  • Density 0.726g/mL
  • CAS: 121-44-8

Ordering Information:

X in the ordering table indicates that hazardous shipping charges apply.



Store in original container protected from direct sunlight in a dry, cool and well-ventilated area.
100 g
Ion Pairing Reagent
Triethylamine (TEA)
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For Research Use Only. Not for use in diagnostic procedures.