Zhuhai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
The Supply Chain in 2026
Page 11 of 13 of this archive, newest first.
Why a result on one vial says less than the trade needs it to
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.
HJ declines, for the 24th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What a 9% rise in coupling-reagent prices does to a 5 mg vial
Follow the resin, not the catalogue.
TFC declines, for the 5th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
What a 34% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
A supplier suspends shipping to Argentina after 16 consecutive customs detentions
The route did not close because of a rule about peptides.
WXT declines, for the 8th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Zhuhai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
Adsorption, and the dose that stayed on the glass
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.
What changed at QSC in January, 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.
A supplier suspends shipping to Singapore after 17 consecutive customs detentions
The route did not close because of a rule about peptides.
Portugal health authority warns on falsified semaglutide pens
Reported from the analysis, not from a warning notice.
QYB declines, for the 3rd time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
What a 23% rise in coupling-reagent prices does to a 15 mg vial
Follow the resin, not the catalogue.
Turnaround, cost and accreditation across the services this trade relies on
We asked all four services what they can determine, on what timescale, at what price, and under what accreditation. The answers are printed in full.