209905-48-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209905-48-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,0 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 209905-48:
(8*2)+(7*0)+(6*9)+(5*9)+(4*0)+(3*5)+(2*4)+(1*8)=146
146 % 10 = 6
So 209905-48-6 is a valid CAS Registry Number.