1,4,5,6,7,7-hexaphenyl-7-sila-bicyclo[2.2.1]hept-5-ene-2endo,3endo-dicarboxylic acid anhydride is a complex organic compound with a unique structure. It features a bicyclo[2.2.1]hept-5-ene core, which is a seven-membered ring with two carbon atoms at the 2 and 3 positions in an endo configuration. The molecule also contains a silicon atom at the 7 position, which replaces one of the carbon atoms in the ring, making it a sila-analog of the parent compound. Additionally, the compound has six phenyl groups attached to the carbon atoms at positions 1, 4, 5, 6, and 7, as well as a double bond between the carbon atoms at positions 2 and 3. The molecule is further characterized by the presence of an anhydride group, which is formed by the removal of a water molecule from two carboxylic acid groups. This anhydride group is located at the 2 and 3 positions of the molecule, further contributing to its complex structure. Overall, 1,4,5,6,7,7-hexaphenyl-7-sila-bicyclo[2.2.1]hept-5-ene-2endo,3endo-dicarboxylic acid anhydride is a highly substituted and functionalized derivative of a bicyclo[2.2.1]hept-5-ene, with potential applications in materials science and organic chemistry.
The CAS Registry Mumber 1065-76-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,6 and 5 respectively; the second part has 2 digits, 7 and 6 respectively. Calculate Digit Verification of CAS Registry Number 1065-76: (6*1)+(5*0)+(4*6)+(3*5)+(2*7)+(1*6)=65 65 % 10 = 5 So 1065-76-5 is a valid CAS Registry Number.