71299-64-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71299-64-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,9 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 71299-64:
(7*7)+(6*1)+(5*2)+(4*9)+(3*9)+(2*6)+(1*4)=144
144 % 10 = 4
So 71299-64-4 is a valid CAS Registry Number.