810-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 810-57-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 810-57:
(5*8)+(4*1)+(3*0)+(2*5)+(1*7)=61
61 % 10 = 1
So 810-57-1 is a valid CAS Registry Number.