4561-24-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4561-24-4 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 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4561-24:
(6*4)+(5*5)+(4*6)+(3*1)+(2*2)+(1*4)=84
84 % 10 = 4
So 4561-24-4 is a valid CAS Registry Number.