81571-70-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81571-70-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,7 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81571-70:
(7*8)+(6*1)+(5*5)+(4*7)+(3*1)+(2*7)+(1*0)=132
132 % 10 = 2
So 81571-70-2 is a valid CAS Registry Number.