18418-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18418-17-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,4,1 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 18418-17:
(7*1)+(6*8)+(5*4)+(4*1)+(3*8)+(2*1)+(1*7)=112
112 % 10 = 2
So 18418-17-2 is a valid CAS Registry Number.