1289121-43-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1289121-43-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,1,2 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1289121-43:
(9*1)+(8*2)+(7*8)+(6*9)+(5*1)+(4*2)+(3*1)+(2*4)+(1*3)=162
162 % 10 = 2
So 1289121-43-2 is a valid CAS Registry Number.