2454-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2454-45-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,4,5 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2454-45:
(6*2)+(5*4)+(4*5)+(3*4)+(2*4)+(1*5)=77
77 % 10 = 7
So 2454-45-7 is a valid CAS Registry Number.