55668-57-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55668-57-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,6 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 55668-57:
(7*5)+(6*5)+(5*6)+(4*6)+(3*8)+(2*5)+(1*7)=160
160 % 10 = 0
So 55668-57-0 is a valid CAS Registry Number.