131111-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131111-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,1 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131111-49:
(8*1)+(7*3)+(6*1)+(5*1)+(4*1)+(3*1)+(2*4)+(1*9)=64
64 % 10 = 4
So 131111-49-4 is a valid CAS Registry Number.