D (+) Biotin [Vitamin H], 1g, is a laboratory-grade reagent essential for various biochemical and research applications. As a vital B-vitamin, biotin is required for numerous cellular functions, including enzyme activation, energy production, and synthesis of fatty acids and amino acids. It plays a crucial role in cellular metabolism and is a key component of enzymes involved in the Krebs cycle and gluconeogenesis. This reagent is used widely in molecular biology, particularly in experiments involving protein tagging, gene expression studies, and enzyme assays. The high-purity biotin is also utilized in the preparation of culture media to support the growth of biotin-dependent microorganisms in microbiological research.