The question no chromatogram has ever answered
The Journal has read several hundred certificates from twenty companies. We set out what the documents actually cover, and what a reader is filling in from imagination.
The Supply Chain in 2024
Page 11 of 27 of this archive, newest first.
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.
A supplier suspends shipping to Portugal after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
What changed at FGP in August, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
TFC declines, for the 4th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What an 18% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
Canada health authority warns on falsified dulaglutide pens
Reported from the analysis, not from a warning notice.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Oxidation, and the peroxide that came in with the surfactant
The sequence predicts the failure mode. A methionine predicts oxidation; an asparagine followed by a glycine predicts deamidation; a cysteine predicts disulphide scrambling.
South Korea health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
What a 25% rise in coupling-reagent prices does to a 10 mg vial
Follow the resin, not the catalogue.
Wuxi export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
What a split-sample exercise can establish, and what it cannot
The Journal submitted split samples from single lots to three assay services, under names unconnected to this publication, and published each method alongside each result.
Ireland health authority warns on falsified semaglutide pens
Reported from the analysis, not from a warning notice.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
A supplier suspends shipping to Mexico after 3 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.
What a 36% rise in coupling-reagent prices does to a 30 mg vial
Follow the resin, not the catalogue.
What changed at FGP in July, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Shenzhen export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.