57778-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57778-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,7 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57778-18:
(7*5)+(6*7)+(5*7)+(4*7)+(3*8)+(2*1)+(1*8)=174
174 % 10 = 4
So 57778-18-4 is a valid CAS Registry Number.