1168140-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1168140-09-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,8,1,4 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1168140-09:
(9*1)+(8*1)+(7*6)+(6*8)+(5*1)+(4*4)+(3*0)+(2*0)+(1*9)=137
137 % 10 = 7
So 1168140-09-7 is a valid CAS Registry Number.