16718-49-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16718-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,7,1 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16718-49:
(7*1)+(6*6)+(5*7)+(4*1)+(3*8)+(2*4)+(1*9)=123
123 % 10 = 3
So 16718-49-3 is a valid CAS Registry Number.