109099-43-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109099-43-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,9 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109099-43:
(8*1)+(7*0)+(6*9)+(5*0)+(4*9)+(3*9)+(2*4)+(1*3)=136
136 % 10 = 6
So 109099-43-6 is a valid CAS Registry Number.