71570-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71570-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,7 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71570-81:
(7*7)+(6*1)+(5*5)+(4*7)+(3*0)+(2*8)+(1*1)=125
125 % 10 = 5
So 71570-81-5 is a valid CAS Registry Number.