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Vitamin B12 is found mostly in animal products, like fish, meat, dairy and eggs
The synthesis constitutes a formal total synthesis, since the research groups only prepared the known intermediate cobyric acid, whose chemical conversion to vitamin B 12 was previously reported
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Using reliable equipment, like the RELI Blunt Fill Needle with Syringe , RELI Safety Hypodermic Needle with Pre-attached Luer Lock Syringe , or RELI WEALY Retractable Safety Syringe , can make a significant difference in the ease, comfort, and safety of the process
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