118227-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118227-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,2,2 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 118227-71:
(8*1)+(7*1)+(6*8)+(5*2)+(4*2)+(3*7)+(2*7)+(1*1)=117
117 % 10 = 7
So 118227-71-7 is a valid CAS Registry Number.