208242-43-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208242-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,2,4 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 208242-43:
(8*2)+(7*0)+(6*8)+(5*2)+(4*4)+(3*2)+(2*4)+(1*3)=107
107 % 10 = 7
So 208242-43-7 is a valid CAS Registry Number.