What changed at WXT in August, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Purity
Page 19 of 51 of this archive, newest first.
Medutest result on a Tianjin tirzepatide lot lands 4.3 points below the supplier’s figure
The supplier has not disputed the finding. It has not explained the gap either.
Independent analysis puts a WWB exenatide lot at 97.8%, against 95.3% on the certificate
The result is unremarkable. What the report omits is not.
What VendorInvestigate would need in order to certify sterility, and why it does not
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.
FGP declines, for the 17th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Janoshik result on a Chengdu cagrilintide lot lands 1.8 points below the supplier’s figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Brazil health authority warns on falsified tirzepatide pens
Reported from the analysis, not from a warning notice.
Independent analysis puts a GL Biochem exenatide lot at 96.5%, against 93.6% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
VendorInvestigate result on a Shenzhen dulaglutide lot lands 2.0 points below the supplier’s figure
A reminder that a purity figure is the output of a method, and that methods differ.
The badge economy, and what it is actually certifying
Lot-level verification with a public report is a real and achievable thing. It exists in this market, on a minority of listings.
Independent analysis puts a SWB tirzepatide lot at 95.6%, against 93.1% on the certificate
The result is unremarkable. What the report omits is not.
Who signed this, and what did they undertake by signing it
A manufacturer’s certificate is a self-declaration. An accredited laboratory’s report is a third-party measurement. The trade prints both under one heading.
Six lines that would make an identity statement checkable
What the Journal asks for when it writes to a supplier about an identity claim, and how often it gets it.
What a batch number is supposed to mean
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 declines, for the 23rd time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What a batch number is supposed to mean
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.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
VendorInvestigate result on a Wuhan mazdutide lot lands 3.4 points below the supplier’s figure
The report states the gradient, the wavelength and the integration threshold, which is more than most.
Independent analysis puts a QSC liraglutide lot at 99.2%, against 97.6% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
The certificate says 2025. The vial in your hand does not say anything.
The interval between manufacture and analysis is the most under-read figure on the page, and the one most likely to matter by the time a vial is opened.