911661-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 911661-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,1,6,6 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 911661-23:
(8*9)+(7*1)+(6*1)+(5*6)+(4*6)+(3*1)+(2*2)+(1*3)=149
149 % 10 = 9
So 911661-23-9 is a valid CAS Registry Number.