A supplier suspends shipping to Switzerland after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
Import & customs
Page 9 of 14 of this archive, newest first.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
The retest date and the expiry date are not the same document
What would make a difference is not a regulator. It is three lines on a certificate, all of which are already known to whoever wrote it.
What twenty companies say about storage, and what they have measured
What would make a difference is not a regulator. It is three lines on a certificate, all of which are already known to whoever wrote it.
A supplier suspends shipping to India after 4 consecutive customs detentions
The route did not close because of a rule about peptides.
Deamidation is the commonest degradation route and the hardest to see
We describe each pathway in enough chemical detail to explain why it is invisible to the method the trade uses, because that is the part which has practical consequences.
A supplier suspends shipping to New Zealand after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
A supplier suspends shipping to Italy after 10 consecutive customs detentions
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
A supplier suspends shipping to Switzerland after 4 consecutive customs detentions
The route did not close because of a rule about peptides.
The retest date and the expiry date are not the same document
A stability programme needs a protocol, defined conditions, a stability-indicating method and time. Time is the ingredient no commercial testing service can sell.
The shelf life ends when the diluent goes in
At low concentrations a measurable fraction of peptide can adsorb to glass and plastic surfaces, and the loss is largest exactly where it is least expected.
Asparagine, glycine, and the two residues that decide a shelf life
The sequence predicts the failure mode. A methionine predicts oxidation; an asparagine followed by a glycine predicts deamidation; a cysteine predicts disulphide scrambling.
A supplier suspends shipping to Norway after 18 consecutive customs detentions
The route did not close because of a rule about peptides.
A supplier suspends shipping to Argentina after 11 consecutive customs detentions
The route did not close because of a rule about peptides.
A supplier suspends shipping to Spain after 10 consecutive customs detentions
The route did not close because of a rule about peptides.
A supplier suspends shipping to Nigeria after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
A supplier suspends shipping to Poland after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.