109043-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109043-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,4 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109043-70:
(8*1)+(7*0)+(6*9)+(5*0)+(4*4)+(3*3)+(2*7)+(1*0)=101
101 % 10 = 1
So 109043-70-1 is a valid CAS Registry Number.