79831-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79831-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,3 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 79831-71:
(7*7)+(6*9)+(5*8)+(4*3)+(3*1)+(2*7)+(1*1)=173
173 % 10 = 3
So 79831-71-3 is a valid CAS Registry Number.