Independent analysis puts a TFC tirzepatide lot at 98.3%, against 95.4% on the certificate
The result is unremarkable. What the report omits is not.
Coverage naming TFC
Reporting from across the Journal that names Tianjin Finder Chemical Co., Ltd., or that bears directly on the questions its dossier leaves open. The dossier itself — the testing record, the correspondence log and the verification box — is here.
Independent analysis puts a TFC semaglutide lot at 96.7%, against 94.6% on the certificate
The supplier has not disputed the finding. It has not explained the gap either.
What changed at TFC in April, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What changed at TFC in April, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What changed at TFC 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.
What changed at TFC in February, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
TFC declines, for the 5th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
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.
What changed at TFC in December, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
TFC declines, for the 18th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
TFC declines, for the 4th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Independent analysis puts a TFC cagrilintide lot at 95.9%, against 95.2% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
Independent analysis puts a TFC semaglutide lot at 97.6%, against 95.9% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
What changed at TFC in April, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
TFC 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.
TFC 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.
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.
Independent analysis puts a TFC semaglutide lot at 99.0%, against 96.3% on the certificate
The result is unremarkable. What the report omits is not.
TFC declines, for the 8th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Independent analysis puts a TFC dulaglutide lot at 95.8%, against 95.1% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.