4563-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4563-28-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,6 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4563-28:
(6*4)+(5*5)+(4*6)+(3*3)+(2*2)+(1*8)=94
94 % 10 = 4
So 4563-28-4 is a valid CAS Registry Number.