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As isolated as an air-stable solid and available commercially, cobalt in vitamin B 12 (cyanocobalamin and other vitamers) is present in its +3 oxidation state
This is a simple double check that will prevent any errors such as using D50.9 when D50.0 has already been documented
A detailed look at this two-way link is in the stress and immunity article
These are not clean or confirmatory positive results
Identity: Confirmed by mass spectrometry and peptide mapping consistent with the C194H312N54O59S2 composition and amylinanalogue sequence
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