71129-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71129-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,1,2 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71129-31:
(7*7)+(6*1)+(5*1)+(4*2)+(3*9)+(2*3)+(1*1)=102
102 % 10 = 2
So 71129-31-2 is a valid CAS Registry Number.