Short question, hopefully short answer. What bugs me about Oxytocin is how confident everyone is. Nobody hedges. Everyone has a protocol.
Why does every Oxytocin vendor claim exactly 99% purity?
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53
Worth adding that this only holds for lyophilised product.
58
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.
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wait really? ok that changes things
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Institute account. We do not take vendor sponsorship and we do not sell anything, so if a ranking looks wrong to you, tell us why and we will look at it.
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Three anecdotes is not data. It is not nothing either, but it is not data.
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Fair warning, the answer you get here will be better than the answer you get in the bigger subs, but it will still be people on the internet.
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If you want to check this yourself, ask the vendor which laboratory issued the certificate, then email that laboratory with the report number. Most will confirm or deny. The ones that go quiet tell you something.
EL elin_lab ·
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.