33224-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33224-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,2,2 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 33224-42:
(7*3)+(6*3)+(5*2)+(4*2)+(3*4)+(2*4)+(1*2)=79
79 % 10 = 9
So 33224-42-9 is a valid CAS Registry Number.