A supplier suspends shipping to New Zealand after 12 consecutive customs detentions
The route did not close because of a rule about peptides.
Vendors
Page 28 of 48 of this archive, newest first.
Zhuhai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
An interlaboratory comparison nobody had run
Duplicate submissions under different names test within-laboratory repeatability, which is a different quantity from between-laboratory reproducibility.
What changed at SSA 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.
Reproducibility, measured rather than assumed
Duplicate submissions under different names test within-laboratory repeatability, which is a different quantity from between-laboratory reproducibility.
What an 11% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
Six words a verification badge would need to mean anything
What a verification mark would have to carry to be checkable: a date, a lot, a method, a submitter and a link to the report.
JEEP declines, for the 23rd 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 GGPeps tirzepatide lot at 96.6%, against 93.7% on the certificate
The result is unremarkable. What the report omits is not.
What a 31% rise in coupling-reagent prices does to a 20 mg vial
Follow the resin, not the catalogue.
Two decimal places on a single injection is a rhetorical choice
A result without a specification is a number. A specification without a result is a promise. Certificates in this market frequently carry one and not the other.
What a 13% rise in coupling-reagent prices does to a 5 mg vial
Follow the resin, not the catalogue.
Wuhan export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
A supplier suspends shipping to the Netherlands after 17 consecutive customs detentions
The route did not close because of a rule about peptides.
What changed at CPC in January, and what the company will not say about it
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.
Zhuhai export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
Janoshik result on a Suzhou semaglutide lot lands 0.7 points below the supplier’s figure
The result is unremarkable. What the report omits is not.
Reproducibility, measured rather than assumed
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.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.