6518-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6518-63-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,1 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6518-63:
(6*6)+(5*5)+(4*1)+(3*8)+(2*6)+(1*3)=104
104 % 10 = 4
So 6518-63-4 is a valid CAS Registry Number.