691870-06-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691870-06-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,7 and 0 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 691870-06:
(8*6)+(7*9)+(6*1)+(5*8)+(4*7)+(3*0)+(2*0)+(1*6)=191
191 % 10 = 1
So 691870-06-1 is a valid CAS Registry Number.