Zoledronic acid hydrate 50MG. Zoledronic acid hydrate, CAS: 165800-06-6, MF: C5H12N2O8P2, MW: 290. 1, Purity: greater than or equal to 98%, Appearance: Crystaline solid, Synonym: (1-hydroxy-2-(1H-imidazol-1-yl)ethane-1, 1-diyl)diphosphonic acid NDC-zoledronate, zoledronate, Zometa, Size: 50MG