22513-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22513-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,1 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22513-39:
(7*2)+(6*2)+(5*5)+(4*1)+(3*3)+(2*3)+(1*9)=79
79 % 10 = 9
So 22513-39-9 is a valid CAS Registry Number.