71202-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71202-80-7 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, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71202-80:
(7*7)+(6*1)+(5*2)+(4*0)+(3*2)+(2*8)+(1*0)=87
87 % 10 = 7
So 71202-80-7 is a valid CAS Registry Number.