111961-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111961-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,6 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 111961-64:
(8*1)+(7*1)+(6*1)+(5*9)+(4*6)+(3*1)+(2*6)+(1*4)=109
109 % 10 = 9
So 111961-64-9 is a valid CAS Registry Number.