57389-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57389-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,3,8 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57389-77:
(7*5)+(6*7)+(5*3)+(4*8)+(3*9)+(2*7)+(1*7)=172
172 % 10 = 2
So 57389-77-2 is a valid CAS Registry Number.