57745-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57745-83-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,4 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57745-83:
(7*5)+(6*7)+(5*7)+(4*4)+(3*5)+(2*8)+(1*3)=162
162 % 10 = 2
So 57745-83-2 is a valid CAS Registry Number.