66778-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66778-03-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,7,7 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66778-03:
(7*6)+(6*6)+(5*7)+(4*7)+(3*8)+(2*0)+(1*3)=168
168 % 10 = 8
So 66778-03-8 is a valid CAS Registry Number.