Editorial educational content. Specialist review is not claimed; consult the original references and limitations.
Definition and context
An ion associated with a species of opposite charge.
What to check
Confirm whether the material is described as acetate or trifluoroacetate; distinguish salt form from covalent sequence modifications.
Interpretation
Changing the counterion does not establish analytical equivalence.
Sources and verification scope
Therapeutic peptides: current applications and future directions ↗
Wang et al. · Signal Transduction and Targeted Therapy
Source details (original language)
- Scope
- Review of therapeutic peptide development
- Document section
- Introduction; production, modification and applications
- Limitations
- Historical review, not validation of products or batches. More than 80 approved drugs is a 2022 literature statement.
- Claim verification date
- 2026-09-09
Related reading
Acetate
A species derived from acetic acid that can serve as a counterion.
Read details →TFA
An abbreviation for trifluoroacetic acid; trifluoroacetate may be present as a counterion.
Read details →