209682-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209682-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,6,8 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 209682-89:
(8*2)+(7*0)+(6*9)+(5*6)+(4*8)+(3*2)+(2*8)+(1*9)=163
163 % 10 = 3
So 209682-89-3 is a valid CAS Registry Number.