Repackaging, subdivision, and the batch number that changed hands
A document is only as good as the chain that connects it to the material, and most chains here are two or three links longer than the paperwork admits.
Certificates of analysis
Page 16 of 51 of this archive, newest first.
What changed at WXT in October, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Reading a certificate as a document rather than as a score
Nothing on this page is difficult. It is simply unfamiliar, and unfamiliarity is what makes a weak certificate look like a strong one.
JEEP names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Container closure integrity, and the tests that actually probe it
A sterile product is sterile only for as long as its container closure system excludes the outside world. Integrity is testable, and the tests are cheap by the standards of…
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.
What changed at QSC in October, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Date of analysis, date of manufacture, and the gap between them
What happens to traceability when bulk material is subdivided, repackaged and relabelled two or three times before sale.
Independent analysis puts a CPC mazdutide lot at 97.5%, against 94.0% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
When a template becomes a misrepresentation
A PDF carries metadata about the software that produced it, and that metadata is frequently more informative than the content.
What changed at ERP in October, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Medutest result on a Hangzhou liraglutide lot lands 4.1 points above the supplier’s stated figure
A reminder that a purity figure is the output of a method, and that methods differ.
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.
Homopeptide names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
New Zealand health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
What a purity certificate is silent about
A purity figure is silent on peptide content, on water, on counter-ion, on sterility, on endotoxin and on stability. Each of those silences has a price attached.
What changed at QST in October, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Retest date, expiry date, and the two conventions being confused
A document is only as good as the chain that connects it to the material, and most chains here are two or three links longer than the paperwork admits.
VendorInvestigate result on a Changsha orforglipron lot lands 1.6 points above the supplier’s stated figure
The result is unremarkable. What the report states alongside it is not.