12197-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12197-79-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,1,9 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 12197-79:
(7*1)+(6*2)+(5*1)+(4*9)+(3*7)+(2*7)+(1*9)=104
104 % 10 = 4
So 12197-79-4 is a valid CAS Registry Number.