22333-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22333-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,3,3 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 22333-57:
(7*2)+(6*2)+(5*3)+(4*3)+(3*3)+(2*5)+(1*7)=79
79 % 10 = 9
So 22333-57-9 is a valid CAS Registry Number.