2228-92-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2228-92-4 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, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2228-92:
(6*2)+(5*2)+(4*2)+(3*8)+(2*9)+(1*2)=74
74 % 10 = 4
So 2228-92-4 is a valid CAS Registry Number.