81974-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81974-63-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,7 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81974-63:
(7*8)+(6*1)+(5*9)+(4*7)+(3*4)+(2*6)+(1*3)=162
162 % 10 = 2
So 81974-63-2 is a valid CAS Registry Number.