43111-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 43111-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,1,1 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 43111-11:
(7*4)+(6*3)+(5*1)+(4*1)+(3*1)+(2*1)+(1*1)=61
61 % 10 = 1
So 43111-11-1 is a valid CAS Registry Number.