54100-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54100-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,1,0 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 54100-20:
(7*5)+(6*4)+(5*1)+(4*0)+(3*0)+(2*2)+(1*0)=68
68 % 10 = 8
So 54100-20-8 is a valid CAS Registry Number.