57946-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57946-40-4 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 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57946-40:
(7*5)+(6*7)+(5*9)+(4*4)+(3*6)+(2*4)+(1*0)=164
164 % 10 = 4
So 57946-40-4 is a valid CAS Registry Number.