71020-99-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71020-99-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 71020-99:
(7*7)+(6*1)+(5*0)+(4*2)+(3*0)+(2*9)+(1*9)=90
90 % 10 = 0
So 71020-99-0 is a valid CAS Registry Number.