691390-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691390-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,3,9 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 691390-19:
(8*6)+(7*9)+(6*1)+(5*3)+(4*9)+(3*0)+(2*1)+(1*9)=179
179 % 10 = 9
So 691390-19-9 is a valid CAS Registry Number.