The addition of the N-terminal tyrosine residue was incorporated to facilitate radiolabelling for pharmacokinetic research studies, and has since become a standard part of the compounds structure as used in laboratory research
Cobalt-containing compounds with vitamin B12 activity are referred to as cobalamin
Their dedicated Hospira Bacteriostatic Water page details everything, while the broader solutions page and diluent category cover matching sterile options if needed
According to the World Health Organization (WHO), validated procedures and controlled laboratory environments are important components of reproducible research workflows
Thus, even with vegan diets, deficiency generally takes several years to develop
If you are experiencing symptoms of a B12 or folate deficiency, please consult a qualified healthcare professional about your individual circumstances