111988-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111988-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,8 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 111988-05:
(8*1)+(7*1)+(6*1)+(5*9)+(4*8)+(3*8)+(2*0)+(1*5)=127
127 % 10 = 7
So 111988-05-7 is a valid CAS Registry Number.