22224-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22224-55-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,2 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 22224-55:
(7*2)+(6*2)+(5*2)+(4*2)+(3*4)+(2*5)+(1*5)=71
71 % 10 = 1
So 22224-55-1 is a valid CAS Registry Number.