540518-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 540518-23-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,5,1 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 540518-23:
(8*5)+(7*4)+(6*0)+(5*5)+(4*1)+(3*8)+(2*2)+(1*3)=128
128 % 10 = 8
So 540518-23-8 is a valid CAS Registry Number.