57224-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57224-16-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,2 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 57224-16:
(7*5)+(6*7)+(5*2)+(4*2)+(3*4)+(2*1)+(1*6)=115
115 % 10 = 5
So 57224-16-5 is a valid CAS Registry Number.