The chemical compound "U(C6H5N2O2)4" is a coordination complex consisting of a uranium (U) central metal ion coordinated with four bidentate ligands, each of which is a 2,2'-bipyridine molecule (C6H5N2O2). In this complex, uranium is the central metal atom, and each 2,2'-bipyridine ligand donates two pairs of electrons to form coordinate covalent bonds with the uranium ion. The overall charge of the complex is neutral, as the uranium ion is balanced by the electron donation from the four ligands. This type of complex is often used in coordination chemistry to study the properties of metal ions and their interactions with various ligands.
The CAS Registry Mumber 26248-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,2,4 and 8 respectively; the second part has 2 digits, 4 and 4 respectively. Calculate Digit Verification of CAS Registry Number 26248-44: (7*2)+(6*6)+(5*2)+(4*4)+(3*8)+(2*4)+(1*4)=112 112 % 10 = 2 So 26248-44-2 is a valid CAS Registry Number.