801988-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 801988-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,1,9,8 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 801988-66:
(8*8)+(7*0)+(6*1)+(5*9)+(4*8)+(3*8)+(2*6)+(1*6)=189
189 % 10 = 9
So 801988-66-9 is a valid CAS Registry Number.