117747-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117747-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,4 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117747-68:
(8*1)+(7*1)+(6*7)+(5*7)+(4*4)+(3*7)+(2*6)+(1*8)=149
149 % 10 = 9
So 117747-68-9 is a valid CAS Registry Number.