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C13 to C12 Ratio of Natural and Synthetic Testosterone
Maybe this belongs in rec.bicycles.racing.chemistry.organic.synthesis.
From what I've been reading, the isotope ratio of synthetic testosterone is only somewhat different than that of natural testosterone. Does anyone know how much the difference is? And better yet, why is there a difference? I am assuming that all carbon in the biosphere has the same C12/C13 ratio, and that the difference in masses is unlikely to produce any kinetic differences during the biosynthetic reactions, in stark contrast to H1/H2 isotopes. Is it that a starting material is taken from the soy source and then modified with petroleum derived reagents (which have no C13 since they have been in the ground for millenia)? John Aspen Research, - www.aspenresearch.com "Turning Questions into Answers" Opinions expressed herein are my own and may not represent those of my employer. |
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