What changed at SGN in March, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Vendors
Page 7 of 48 of this archive, newest first.
Independent analysis puts a SGN survodutide lot at 95.6%, against 93.1% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
What a 23% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
QST names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
QSC names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
What changed at TFC in February, 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 India after 17 consecutive customs detentions
The route did not close because of a rule about peptides.
Medutest result on a Wuhan dulaglutide lot lands 0.7 points above the supplier’s stated figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
What changed at FGP in February, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
An interlaboratory comparison nobody had run
The Journal submitted split samples from single lots to three assay services, under names unconnected to this publication, and published each method alongside each result.
GGPeps names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Independent analysis puts a SWB tirzepatide lot at 98.3%, against 95.6% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
What a 40% rise in coupling-reagent prices does to a 20 mg vial
Follow the resin, not the catalogue.
PeptideMeter result on a Changsha retatrutide lot lands 3.4 points above the supplier’s stated figure
A reminder that a purity figure is the output of a method, and that methods differ.
Chengdu export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
What a 27% rise in coupling-reagent prices does to a 5 mg vial
Follow the resin, not the catalogue.
Independent analysis puts a SGN dulaglutide lot at 96.0%, against 93.3% on the certificate
The supplier confirmed the determination and supplied the method behind its own figure inside a week.