200394-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200394-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,3,9 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 200394-18:
(8*2)+(7*0)+(6*0)+(5*3)+(4*9)+(3*4)+(2*1)+(1*8)=89
89 % 10 = 9
So 200394-18-9 is a valid CAS Registry Number.