1171799-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1171799-90-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,7,9 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1171799-90:
(9*1)+(8*1)+(7*7)+(6*1)+(5*7)+(4*9)+(3*9)+(2*9)+(1*0)=188
188 % 10 = 8
So 1171799-90-8 is a valid CAS Registry Number.