668265-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668265-84-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,2,6 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 668265-84:
(8*6)+(7*6)+(6*8)+(5*2)+(4*6)+(3*5)+(2*8)+(1*4)=207
207 % 10 = 7
So 668265-84-7 is a valid CAS Registry Number.