Vitamin B12 (Cyanocobalamin) is an essential water-soluble vitamin that plays a key role in cell metabolism, DNA synthesis and neurological function. It is supplied as a high-purity research-grade preparation in sealed vials for laboratory use. Vitamin B12 is widely applied in cell-culture media, nutritional and biochemical research, and is frequently used as a supplement in various experimental systems. The stable presentation supports convenient dosing and consistent results in research protocols. Every batch is quality-controlled to ensure reliable and reproducible outcomes.. Each batch is manufactured under controlled quality systems and batch-specific certificates of analysis are obtainable on request. Store the sealed vial at 2-8 degree C away from direct light and humidity; for extended storage keep at -20 degree C and minimize freeze-thaw cycles. Small sample orders and bulk quantities are both welcomed, and we provide OEM, private-label and secure neutral-packaging services for global delivery. Laboratory research use only.