Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
The Supply Chain in 2024
Page 20 of 27 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.
Wuhan export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
South Africa health authority warns on falsified liraglutide pens
Reported from the analysis, not from a warning notice.
What changed at MKM in April, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
What the sequence tells you about how a peptide will fail
The sequence predicts the failure mode. A methionine predicts oxidation; an asparagine followed by a glycine predicts deamidation; a cysteine predicts disulphide scrambling.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
BCH declines, for the 6th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Asparagine, glycine, and the two residues that decide a shelf life
An isoaspartate rearrangement changes the molecule and not the mass. A method that confirms identity by molecular weight alone will report it as the parent compound.
What a 29% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
What changed at QYB in March, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Custody, condition and the temperature nobody logged
The condition on arrival is recorded by some services and not others, and it is one of the more informative lines in a report.
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 France after 23 consecutive customs detentions
The route did not close because of a rule about peptides.
Reproducibility, measured rather than assumed
Two years ago we ran an anonymised version of this comparison and promised a named one. This is it, with every method printed in full.
MKM declines, for the 16th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What a 12% rise in coupling-reagent prices does to a 20 mg vial
Follow the resin, not the catalogue.
South Korea health authority warns on falsified tirzepatide pens
Reported from the analysis, not from a warning notice.