209853-00-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209853-00-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,8,5 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 209853-00:
(8*2)+(7*0)+(6*9)+(5*8)+(4*5)+(3*3)+(2*0)+(1*0)=139
139 % 10 = 9
So 209853-00-9 is a valid CAS Registry Number.