20054-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20054-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,5 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20054-23:
(7*2)+(6*0)+(5*0)+(4*5)+(3*4)+(2*2)+(1*3)=53
53 % 10 = 3
So 20054-23-3 is a valid CAS Registry Number.