Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Certificates of analysis
Page 23 of 51 of this archive, newest first.
What we asked twenty suppliers about stability data
A retest date says that material should be re-examined before use. An expiry date says it should not be used. The trade uses the second word for the first concept.
Mexico health authority warns on falsified semaglutide pens
Reported from the analysis, not from a warning notice.
The ionisation line on a report is the most informative line on it
The ionisation method determines the charge states you see, the adducts you must account for, and the modifications you might destroy in the process.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
From vial to bench: what is recorded and what is assumed
The condition on arrival is recorded by some services and not others, and it is one of the more informative lines in a report.
Independent analysis puts a GGPeps liraglutide lot at 97.8%, against 93.8% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Medutest result on a Xi'an orforglipron lot lands 1.0 points below the supplier’s figure
The report states the gradient, the wavelength and the integration threshold, which is more than most.
Janoshik result on a Nantong mazdutide lot lands 0.9 points below the supplier’s figure
The result is unremarkable. What the report omits is not.
Janoshik result on a Wuxi semaglutide lot lands 2.4 points below the supplier’s figure
The supplier has not disputed the finding. It has not explained the gap either.
Independent analysis puts a SGN orforglipron lot at 96.1%, against 93.2% on the certificate
The result is unremarkable. What the report omits is not.
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.
Deamidation, oxidation, and the two shifts worth memorising
What would be needed to catch each of these, and what it would cost.
VendorInvestigate result on a Shanghai mazdutide lot lands 2.8 points below the supplier’s figure
The supplier has not disputed the finding. It has not explained the gap either.
FGP 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.
Twenty-eight days is a number from somebody else’s product
Every degradation pathway accelerates by orders of magnitude on reconstitution, because the solvent that lyophilisation removed is the reagent most of them need.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
What changed at KP in May, 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 vial can be 99.4 per cent pure and not sterile in the same afternoon
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.
Independent analysis puts a JEEP retatrutide lot at 97.1%, against 94.3% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.