57945-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57945-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,4 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57945-72:
(7*5)+(6*7)+(5*9)+(4*4)+(3*5)+(2*7)+(1*2)=169
169 % 10 = 9
So 57945-72-9 is a valid CAS Registry Number.