The chemical "2-[4-(4-fluoro-phenyl)-4-oxo-butyl]-1,1-dioxo-1,2-dihydro-1λ6-benzo[d]isothiazol-3-one" is a complex organic compound with a molecular formula of C16H11FNO4S2. It features a benzo[d]isothiazol-3-one core, which is a heterocyclic ring system. The molecule contains a 4-fluoro-phenyl group attached to a 4-oxo-butyl chain, which is further connected to the benzo[d]isothiazol-3-one ring. 2-[4-(4-fluoro-phenyl)-4-oxo-butyl]-1,1-dioxo-1,2-dihydro-1λ6-benzo[d]isothiazol-3-one is characterized by its two oxygen atoms in the form of a peroxide bridge (1,1-dioxo) and a double bond within the 1,2-dihydro structure. The compound's structure and properties make it potentially useful in various chemical and pharmaceutical applications, though specific uses are not detailed here.
The CAS Registry Mumber 1239-40-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,3 and 9 respectively; the second part has 2 digits, 4 and 0 respectively. Calculate Digit Verification of CAS Registry Number 1239-40: (6*1)+(5*2)+(4*3)+(3*9)+(2*4)+(1*0)=63 63 % 10 = 3 So 1239-40-3 is a valid CAS Registry Number.