57205-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57205-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,0 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57205-17:
(7*5)+(6*7)+(5*2)+(4*0)+(3*5)+(2*1)+(1*7)=111
111 % 10 = 1
So 57205-17-1 is a valid CAS Registry Number.