1171930-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1171930-26-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,9,3 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1171930-26:
(9*1)+(8*1)+(7*7)+(6*1)+(5*9)+(4*3)+(3*0)+(2*2)+(1*6)=139
139 % 10 = 9
So 1171930-26-9 is a valid CAS Registry Number.