383909-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 383909-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,3,9,0 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 383909-71:
(8*3)+(7*8)+(6*3)+(5*9)+(4*0)+(3*9)+(2*7)+(1*1)=185
185 % 10 = 5
So 383909-71-5 is a valid CAS Registry Number.