13491-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13491-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,9 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13491-49:
(7*1)+(6*3)+(5*4)+(4*9)+(3*1)+(2*4)+(1*9)=101
101 % 10 = 1
So 13491-49-1 is a valid CAS Registry Number.