5691-79-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5691-79-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,9 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5691-79:
(6*5)+(5*6)+(4*9)+(3*1)+(2*7)+(1*9)=122
122 % 10 = 2
So 5691-79-2 is a valid CAS Registry Number.