99% Pharmaceutical-Grade Purity - High-purity Cyanocobalamin powder for energy metabolism, nerve maintenance and hematopoietic function research use. 1.Lab-Verified Standard Purity Specification - Highly stable crystalline powder with accurate content, suitable for professional laboratory research and formulation trials. 2.Metabolism & Nerve Support Benefits - Core vitamin B12 ingredient promotes carbohydrate and fat energy metabolism, supports nervous system maintenance and assists red blood cell synthesis for physiological mechanism research. 3.Third-Party HPLC/LC-MS Tested - Each batch passes strict purity detection with complete COA certification. 4.Easy Dissolution - Good water solubility, stable solution for all in vitro and in vivo laboratory experiments.