57456-30-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57456-30-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,5 and 6 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57456-30:
(7*5)+(6*7)+(5*4)+(4*5)+(3*6)+(2*3)+(1*0)=141
141 % 10 = 1
So 57456-30-1 is a valid CAS Registry Number.