20005-11-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20005-11-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,0 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20005-11:
(7*2)+(6*0)+(5*0)+(4*0)+(3*5)+(2*1)+(1*1)=32
32 % 10 = 2
So 20005-11-2 is a valid CAS Registry Number.