57865-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57865-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,6 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57865-57:
(7*5)+(6*7)+(5*8)+(4*6)+(3*5)+(2*5)+(1*7)=173
173 % 10 = 3
So 57865-57-3 is a valid CAS Registry Number.