Used in nutritional supplements for thiamine deficiency; in food fortification for bioavailability; in pharmaceuticals for metabolic disorders; in research for enzyme studies; in animal feed for health; in biochemical assays for decarboxylation reactions.

Low toxicity; may irritate eyes and skin upon contact. Avoid inhalation; stable but hygroscopic. Use PPE; no major risks but handle with care to avoid dust.

Supplied in 1g or 5g glass vials for lab use; store sealed in cool, dry conditions per Sigma-Aldrich catalog.