An acetate salt carries acetate (CH3COO−) as the counter-ion to the peptide's positive charges. It is prepared from the trifluoroacetate form by ion exchange or by purification with acetic acid in the mobile phase.
Acetate is volatile in part during lyophilisation, so the acetate content of a lot can vary, and it is reported where net peptide content matters.
See also
For in vitro laboratory research only. Not for human or veterinary use. This library describes chemistry, analytical methods and published laboratory research; it gives no guidance on use in people or animals.