180389-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 180389-11-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,3,8 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 180389-11:
(8*1)+(7*8)+(6*0)+(5*3)+(4*8)+(3*9)+(2*1)+(1*1)=141
141 % 10 = 1
So 180389-11-1 is a valid CAS Registry Number.