22271-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22271-65-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,7 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 22271-65:
(7*2)+(6*2)+(5*2)+(4*7)+(3*1)+(2*6)+(1*5)=84
84 % 10 = 4
So 22271-65-4 is a valid CAS Registry Number.