1011711-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1011711-05-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,1,7,1 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1011711-05:
(9*1)+(8*0)+(7*1)+(6*1)+(5*7)+(4*1)+(3*1)+(2*0)+(1*5)=69
69 % 10 = 9
So 1011711-05-9 is a valid CAS Registry Number.