18689-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18689-80-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,6,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18689-80:
(7*1)+(6*8)+(5*6)+(4*8)+(3*9)+(2*8)+(1*0)=160
160 % 10 = 0
So 18689-80-0 is a valid CAS Registry Number.