1393809-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1393809-18-1 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, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1393809-18:
(9*1)+(8*3)+(7*9)+(6*3)+(5*8)+(4*0)+(3*9)+(2*1)+(1*8)=191
191 % 10 = 1
So 1393809-18-1 is a valid CAS Registry Number.