691870-01-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691870-01-6 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 1 respectively.
Calculate Digit Verification of CAS Registry Number 691870-01:
(8*6)+(7*9)+(6*1)+(5*8)+(4*7)+(3*0)+(2*0)+(1*1)=186
186 % 10 = 6
So 691870-01-6 is a valid CAS Registry Number.