Some Information About Methylsten ~ 2α

Item name: Methylsten ~ 2α

CAS NO, 140703-51-1
Molecular formula C47H58N12O6
Molecular weight 887.04
Item description: Methylsten ~ 2α  is a kind of manual argireline that can promote GH release and it is mainly used in the Clinical treatment of growth hormone secretion insufficient.

The peak at M+2 here has multiple sources, in descending order of likelihood:
--Superdrol -- an unavoidable byproduct of methylsten manufacture which has a molecular weight of roughly 318 and therefore registers an m/z of around 319. Your methylsten caps won't contain more than a fraction of a mg, and such a low dose is neither relevant nor shall it be noticeable. We also made up for it when filling the capsules. 
--Methylsten molecules with two 13C atoms. If the odds of finding one 13C atom in a molecule is x, then the odds of finding two is x*x, three would be x3, and so on... This can be extremely significant, especially when trying to analyze large molecules.
--Heavy oxygen, 18O, a relatively abundant isotope which makes up 0.2% of all oxygen on this planet. Almost insignificant in a compound with just two oxygen atoms, but not quite.


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