57668-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57668-92-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,6 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57668-92:
(7*5)+(6*7)+(5*6)+(4*6)+(3*8)+(2*9)+(1*2)=175
175 % 10 = 5
So 57668-92-5 is a valid CAS Registry Number.