Bicyclo[2.2.1]hepta-2,5-diene-7-carboxylic acid, also known as norbornadiene-7-carboxylic acid, is a bicyclic organic compound with the molecular formula C8H10O2. It features a norbornadiene core, which is a seven-membered ring with two additional carbon atoms forming a bridge, and a carboxylic acid functional group at the 7-position. Bicyclo[2.2.1]hepta-2,5-diene-7-carboxylic acid is an important intermediate in the synthesis of various pharmaceuticals and other organic compounds due to its unique structure and reactivity. It can be synthesized through various methods, including the Diels-Alder reaction of cyclopentadiene with maleic anhydride, followed by hydrolysis. Bicyclo[2.2.1]hepta-2,5-diene-7-carboxylic acid is known for its ability to undergo various chemical transformations, making it a valuable building block in organic chemistry.
The CAS Registry Mumber 5597-66-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,9 and 7 respectively; the second part has 2 digits, 6 and 6 respectively. Calculate Digit Verification of CAS Registry Number 5597-66: (6*5)+(5*5)+(4*9)+(3*7)+(2*6)+(1*6)=130 130 % 10 = 0 So 5597-66-0 is a valid CAS Registry Number.