116818-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116818-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,8,1 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 116818-40:
(8*1)+(7*1)+(6*6)+(5*8)+(4*1)+(3*8)+(2*4)+(1*0)=127
127 % 10 = 7
So 116818-40-7 is a valid CAS Registry Number.