"W(CO)4(4-methylpyridine)2" is a chemical compound consisting of a tungsten (W) atom at its center, surrounded by four carbonyl (CO) ligands and two 4-methylpyridine ligands. The carbonyl ligands are neutral two-electron donor groups, while the 4-methylpyridine ligands are bidentate, meaning they can donate two pairs of electrons to the central metal atom. W(CO)4(4-methylpyridine)2 is an organometallic complex, which is a type of coordination complex that contains at least one metal-carbon bond. Organometallic complexes like this one are important in various fields, including catalysis, materials science, and medicinal chemistry, due to their unique electronic and structural properties.
The CAS Registry Mumber 84076-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,7 and 6 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 84076-49: (7*8)+(6*4)+(5*0)+(4*7)+(3*6)+(2*4)+(1*9)=143 143 % 10 = 3 So 84076-49-3 is a valid CAS Registry Number.