13719-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13719-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,1 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13719-40:
(7*1)+(6*3)+(5*7)+(4*1)+(3*9)+(2*4)+(1*0)=99
99 % 10 = 9
So 13719-40-9 is a valid CAS Registry Number.