1,2,3,4,4a,5,8,8a-octahydro-1,4,5,8-exo,endo-dimethanonaphthalene-4a,8a-dicarboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 73654-76-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,5 and 4 respectively; the second part has 2 digits, 7 and 6 respectively. Calculate Digit Verification of CAS Registry Number 73654-76: (7*7)+(6*3)+(5*6)+(4*5)+(3*4)+(2*7)+(1*6)=149 149 % 10 = 9 So 73654-76-9 is a valid CAS Registry Number.