57450-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57450-20-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,5 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57450-20:
(7*5)+(6*7)+(5*4)+(4*5)+(3*0)+(2*2)+(1*0)=121
121 % 10 = 1
So 57450-20-1 is a valid CAS Registry Number.