Check the vial, not the box
What happens to traceability when bulk material is subdivided, repackaged and relabelled two or three times before sale.
Vendors
Page 22 of 48 of this archive, newest first.
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.
Xi'an export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
Shenzhen export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
A supplier suspends shipping to Sweden after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
Six words a verification badge would need to mean anything
A badge asserts that something was tested. It does not assert what, when, on whose sample, by what method, or whether the lot on sale is the lot that was tested.
A supplier suspends shipping to Argentina after 14 consecutive customs detentions
The route did not close because of a rule about peptides.
What a 7% rise in coupling-reagent prices does to a 10 mg vial
Follow the resin, not the catalogue.
Medutest result on a Qingdao survodutide lot lands 2.7 points below the supplier’s figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
What changed at SGN 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.
The sample is not the batch
A result on one vial generalises to a batch only if the vial was drawn in a way that makes it representative — and nobody records how it was drawn.
Wuhan export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
What changed at MKM 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.
VendorInvestigate result on a Xianning cagrilintide lot lands 2.6 points below the supplier’s figure
The result is unremarkable. What the report omits is not.
A supplier suspends shipping to Canada after 19 consecutive customs detentions
The route did not close because of a rule about peptides.
Independent analysis puts a Homopeptide retatrutide lot at 98.9%, against 98.1% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
A supplier suspends shipping to Turkey after 20 consecutive customs detentions
The route did not close because of a rule about peptides.
Suzhou export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
What a 26% rise in coupling-reagent prices does to a 30 mg vial
Follow the resin, not the catalogue.