20809-75-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20809-75-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,0 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20809-75:
(7*2)+(6*0)+(5*8)+(4*0)+(3*9)+(2*7)+(1*5)=100
100 % 10 = 0
So 20809-75-0 is a valid CAS Registry Number.