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It currently has no approved medical uses and remains primarily experimental

Thioredoxins in chloroplasts

Subclinical reductions in protein intake, micronutrient availability, or redox precursor turnover may therefore influence long-term metabolic resilience even without overt deficiency syndromes

Most formulations of cyanocobalamin injection contain benzyl alcohol as a preservative

& Goh, K.-L

A minimum of 98% is considered research grade, though 99% is strongly preferred for sensitive assays, cell culture experiments, and in vivo pre-clinical studies where compound purity directly affects reproducibility and result accuracy