4564-68-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4564-68-5 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 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4564-68:
(6*4)+(5*5)+(4*6)+(3*4)+(2*6)+(1*8)=105
105 % 10 = 5
So 4564-68-5 is a valid CAS Registry Number.