2228-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2228-49-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,2 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2228-49:
(6*2)+(5*2)+(4*2)+(3*8)+(2*4)+(1*9)=71
71 % 10 = 1
So 2228-49-1 is a valid CAS Registry Number.