4649-24-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4649-24-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,4 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4649-24:
(6*4)+(5*6)+(4*4)+(3*9)+(2*2)+(1*4)=105
105 % 10 = 5
So 4649-24-5 is a valid CAS Registry Number.