1289119-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1289119-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,1,1 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1289119-90:
(9*1)+(8*2)+(7*8)+(6*9)+(5*1)+(4*1)+(3*9)+(2*9)+(1*0)=189
189 % 10 = 9
So 1289119-90-9 is a valid CAS Registry Number.