181820-01-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181820-01-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,8,2 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 181820-01:
(8*1)+(7*8)+(6*1)+(5*8)+(4*2)+(3*0)+(2*0)+(1*1)=119
119 % 10 = 9
So 181820-01-9 is a valid CAS Registry Number.