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One such essential nutrient is vitamin B12, often referred to simply as B12
Benzyl alcohol exhibits cytotoxicity toward certain cell types at concentrations used in bacteriostatic water
[73] As noted above, the completely synthetic laboratory synthesis of B 12 was achieved by Robert Burns Woodward and Albert Eschenmoser in 1972, though this process has no commercial potential, requiring more than 70 steps and having a yield well below 0.01%
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