181209-10-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181209-10-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,2,0 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 181209-10:
(8*1)+(7*8)+(6*1)+(5*2)+(4*0)+(3*9)+(2*1)+(1*0)=109
109 % 10 = 9
So 181209-10-9 is a valid CAS Registry Number.