42518-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42518-30-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,1 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42518-30:
(7*4)+(6*2)+(5*5)+(4*1)+(3*8)+(2*3)+(1*0)=99
99 % 10 = 9
So 42518-30-9 is a valid CAS Registry Number.