669067-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 669067-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,9,0,6 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 669067-80:
(8*6)+(7*6)+(6*9)+(5*0)+(4*6)+(3*7)+(2*8)+(1*0)=205
205 % 10 = 5
So 669067-80-5 is a valid CAS Registry Number.