691880-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691880-67-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,8 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 691880-67:
(8*6)+(7*9)+(6*1)+(5*8)+(4*8)+(3*0)+(2*6)+(1*7)=208
208 % 10 = 8
So 691880-67-8 is a valid CAS Registry Number.