Exo-1a,9-dihydro-1H-cyclopropa[l]phenanthrene-1-carboxylic acid is a complex organic chemical compound with the molecular formula C20H16O2. It is a derivative of cyclopropa[l]phenanthrene, which is a tricyclic aromatic hydrocarbon. exo-1a,9-dihydro-1H-cyclopropa[l]phenanthrene-1-carboxylic acid features a cyclopropane ring fused to a phenanthrene core, with a carboxylic acid functional group attached to the first carbon atom. The "exo" prefix indicates that the carboxylic acid group is located on the exterior of the molecule, as opposed to the "endo" isomer, which would have the carboxylic acid group on the interior. This specific arrangement of atoms and functional groups gives exo-1a,9-dihydro-1H-cyclopropa[l]phenanthrene-1-carboxylic acid unique chemical properties and potential applications in various fields, such as pharmaceuticals or materials science.
The CAS Registry Mumber 729-86-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 9 respectively; the second part has 2 digits, 8 and 6 respectively. Calculate Digit Verification of CAS Registry Number 729-86: (5*7)+(4*2)+(3*9)+(2*8)+(1*6)=92 92 % 10 = 2 So 729-86-2 is a valid CAS Registry Number.