20054-18-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20054-18-6 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, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20054-18:
(7*2)+(6*0)+(5*0)+(4*5)+(3*4)+(2*1)+(1*8)=56
56 % 10 = 6
So 20054-18-6 is a valid CAS Registry Number.