Used in the laboratory as a labeling and affinity purification tool in combination with streptavidin or related moieties.Coenzyme for carboxylases and an essential nutrient for many metabolic processes involving carbohydrates, lipids, and amino acids. Nuclear chromatin is stabilized by covalent modification with bioti2.; Purity: > 98%; Molecular Weight: 244.3; Form/Appearance: powder, 5 g