82913-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82913-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82913-21:
(7*8)+(6*2)+(5*9)+(4*1)+(3*3)+(2*2)+(1*1)=131
131 % 10 = 1
So 82913-21-1 is a valid CAS Registry Number.