1393809-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1393809-20-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,3,8,0 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1393809-20:
(9*1)+(8*3)+(7*9)+(6*3)+(5*8)+(4*0)+(3*9)+(2*2)+(1*0)=185
185 % 10 = 5
So 1393809-20-5 is a valid CAS Registry Number.