57440-86-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57440-86-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,4 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 57440-86:
(7*5)+(6*7)+(5*4)+(4*4)+(3*0)+(2*8)+(1*6)=135
135 % 10 = 5
So 57440-86-5 is a valid CAS Registry Number.