What a 33% rise in coupling-reagent prices does to a 20 mg vial
Follow the resin, not the catalogue.
The Supply Chain
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Page 61
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Australia health authority warns on falsified tirzepatide pens
Reported from the analysis, not from a warning notice.
Shanghai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
What changed at HJ 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.
A supplier suspends shipping to Saudi Arabia after 19 consecutive customs detentions
The route did not close because of a rule about peptides.
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.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
What a 25% rise in coupling-reagent prices does to a 10 mg vial
Follow the resin, not the catalogue.
MKM declines, for the 19th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What changed at QSC 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.
Qingdao export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
LAL, kinetic chromogenic, recombinant factor C: three ways to the same figure
Bacterial endotoxin is a heat-stable lipopolysaccharide from the outer membrane of Gram-negative organisms. It survives sterilisation, passes a sterilising filter, and is…
What a 23% rise in coupling-reagent prices does to a 15 mg vial
Follow the resin, not the catalogue.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
GGPeps declines, for the 15th time, to name its synthesis house
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.
Spain health authority warns on falsified tirzepatide pens
Reported from the analysis, not from a warning notice.
Reading a certificate as a document rather than as a score
The purity figure is the least informative line on a well-constructed certificate and the only line most buyers read.
Why FGP can be entirely straightforward and still tell you nothing about bioburden
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.