What a 41% rise in coupling-reagent prices does to a 5 mg vial
Follow the resin, not the catalogue.
Vendors
Page 39 of 48 of this archive, newest first.
What changed at TFC in June, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
The submitted sample: the weakest link in the whole system
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.
A supplier suspends shipping to Australia after 18 consecutive customs detentions
The route did not close because of a rule about peptides.
What changed at MKM in June, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
A supplier suspends shipping to Australia after 24 consecutive customs detentions
The route did not close because of a rule about peptides.
HJ 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 9% rise in coupling-reagent prices does to a 20 mg vial
Follow the resin, not the catalogue.
Independent analysis puts a CPC orforglipron lot at 96.1%, against 94.6% on the certificate
The supplier confirmed the determination and supplied the method behind its own figure inside a week.
Xi'an 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 changed at SGN in June, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
A supplier suspends shipping to Denmark after 13 consecutive customs detentions
The route did not close because of a rule about peptides.
Zhuhai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
Independent analysis puts a CPC orforglipron lot at 95.2%, against 92.3% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
A supplier suspends shipping to India after 3 consecutive customs detentions
The route did not close because of a rule about peptides.
What changed at SWB in June, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Janoshik result on a Nantong exenatide lot lands 3.1 points above the supplier’s stated figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Wuhan export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.