71202-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71202-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,0 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71202-16:
(7*7)+(6*1)+(5*2)+(4*0)+(3*2)+(2*1)+(1*6)=79
79 % 10 = 9
So 71202-16-9 is a valid CAS Registry Number.