72634-62-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72634-62-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,3 and 4 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72634-62:
(7*7)+(6*2)+(5*6)+(4*3)+(3*4)+(2*6)+(1*2)=129
129 % 10 = 9
So 72634-62-9 is a valid CAS Registry Number.