CAS Number: 25211-86-3
Chemical Name: (1-Hydroxyethane-1,1-diyl)bis(phosphonic acid) hydrate
Molecular Formula: C2H10O8P2
Molecular Weight: 224.04

CAS Number: 7414-83-7
Chemical Name: Etidronate Disodium
Molecular Formula: C2H6Na2O7P2
Molecular Weight: 249.99

CAS Number: 13517-23-2
Chemical Name: Phosphorous Acid Disodium Pentahydrate
Molecular Formula: H11Na2O8P
Molecular Weight: 216.03