80206-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80206-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,0 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 80206-89:
(7*8)+(6*0)+(5*2)+(4*0)+(3*6)+(2*8)+(1*9)=109
109 % 10 = 9
So 80206-89-9 is a valid CAS Registry Number.