WWB 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.
Vendors
Page 11 of 48 of this archive, newest first.
The submitted sample: the weakest link in the whole system
What a laboratory can and cannot know about the provenance, storage history and representativeness of what lands on its bench.
What a 26% rise in coupling-reagent prices does to a 10 mg vial
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.
Homopeptide declines, for the 20th time, to name its synthesis house
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.
PeptideMeter result on a Zhuhai dulaglutide lot lands 3.7 points below the supplier’s figure
The report states the gradient, the wavelength and the integration threshold, which is more than most.
What a 7% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
Independent analysis puts a QSC mazdutide lot at 97.1%, against 93.6% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Guangzhou export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
A supplier suspends shipping to Spain after 24 consecutive customs detentions
The route did not close because of a rule about peptides.
The reviewer, the approver, and why regulated documents carry two names
Somebody has to be answerable for a release document. On most certificates in this market, nobody is named at all.
VendorInvestigate result on a Xi'an cagrilintide lot lands 0.7 points below the supplier’s figure
The report states the gradient, the wavelength and the integration threshold, which is more than most.
Date of analysis, date of manufacture, and the gap between them
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.
What changed at KP 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.
What a split-sample exercise can establish, and what it cannot
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.
What changed at ERP 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.
The named comparison we promised two years ago
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.
PeptideMeter result on a Zhuhai tirzepatide lot lands 3.5 points below the supplier’s figure
The result is unremarkable. What the report omits is not.
Zhuhai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.