453518-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 453518-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,3,5,1 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 453518-21:
(8*4)+(7*5)+(6*3)+(5*5)+(4*1)+(3*8)+(2*2)+(1*1)=143
143 % 10 = 3
So 453518-21-3 is a valid CAS Registry Number.