1189-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1189-83-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,8 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1189-83:
(6*1)+(5*1)+(4*8)+(3*9)+(2*8)+(1*3)=89
89 % 10 = 9
So 1189-83-9 is a valid CAS Registry Number.