What changed at QSC in January, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Certificates of analysis
Page 10 of 51 of this archive, newest first.
QYB names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
VendorInvestigate result on a Zhuhai retatrutide lot lands 1.8 points above the supplier’s stated figure
A reminder that a purity figure is the output of a method, and that methods differ.
What changed at SGN in January, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Singapore health authority warns on falsified liraglutide pens
Reported from the analysis, not from a warning notice.
BCH names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What a laboratory knows about the material it receives
Every third-party report in this market describes a sample somebody chose to send. That choice is outside the laboratory’s control and outside its records.
Custody, condition and the temperature nobody logged
Chain of custody, in a regulated setting, begins at sampling. Here it begins when the package arrives.
Why TFC 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.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Japan health authority warns on falsified liraglutide pens
Reported from the analysis, not from a warning notice.
The certificate says 2026. The vial in your hand does not say anything.
What happens to traceability when bulk material is subdivided, repackaged and relabelled two or three times before sale.
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.
WXT names the synthesis and fill sites behind its catalogue
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.
What changed after we published the first version of this
None of what this piece asks for is commercially sensitive, and all of it is already known to whoever released the batch.
Independent analysis puts a SSA semaglutide lot at 97.6%, against 94.1% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Leucine, isoleucine, and a difference no balance can measure
Stereochemical inversion changes the molecule, changes its biology, and changes its mass by exactly nothing.
Spain health authority warns on falsified dulaglutide pens
Reported from the analysis, not from a warning notice.
What twenty companies say about storage, and what they have measured
What would make a difference is not a regulator. It is three lines on a certificate, all of which are already known to whoever wrote it.