681463-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 681463-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,4,6 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 681463-91:
(8*6)+(7*8)+(6*1)+(5*4)+(4*6)+(3*3)+(2*9)+(1*1)=182
182 % 10 = 2
So 681463-91-2 is a valid CAS Registry Number.