Short question, hopefully short answer. Prices moved noticeably this month across several vendors at once, which usually means something upstream changed.
A vendor just rebranded under a new name, pattern thread
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37
I would want to see this replicated by a group that is not the one who published the original before I changed anything.
-6
That is a better argument than the one above it.
5
Reversed-phase HPLC with UV detection at 214nm is the standard here because the peptide bond absorbs there. If a vendor reports purity without stating the method or wavelength, the number is not comparable to anything.
20
same boat honestly
8
If your solution went cloudy after reconstitution that is usually either the diluent or the temperature it was stored at. Worth posting what you used.
TH theo ·
Worth separating two things here. Purity tells you what fraction of the material is the target compound. Identity tells you whether the target compound is what the label says. A product can pass one and fail the other, and they are different assays.