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Table 1 A highly abbreviated representative list of the descriptors created for this study.

From: Semantic Web integration of Cheminformatics resources with the SADI framework

Descriptor

Explanation

AlogP

Atomic calculation-based octanol-water partition coefficient.

Aromatic Atom Count

Number of aromatic atoms in a given molecule.

Atom Count

Number of atoms in a molecule.

Atomic Polarizability

Sum of atomic polarizabilities of all atoms in a given molecule.

Bond Count

Number of bonds in a molecule.

Eccentric Connectivity Index

A topological molecular descriptor that reflects on atom connectivity and distance.

Fractional Polar Surface Area

Total partially positively charged molecular surface area divided by the total molecular surface area.

Hydrogen Bond Acceptor Count

Number of atoms that can act as hydrogen bond acceptors.

Hydrogen Bond Donor Count

Number of atoms acting as hydrogen bond donors.

Ionization Potential

Propensity of a given molecule to lose an electron.

Largest Chain

The length of the longest chain of heavy atoms in a molecule

Largest PI System

The number of atoms in the largest conjugated pi-bond system.

Maximal Length/Breadth Ratio

Descriptor of molecular shape describing the ratio of a molecule's length to breadth in the region where it is highest.

Minimal Length/Breadth Ratio

Descriptor of molecular shape describing the ratio of a molecule's length to breadth in the region where it is lowest.

MlogP

Mannhold algorithm-based octanol-water partition coefficient.

Molar Refractivity

Total polarizability of a mole of a given molecule.

Molecular Complexity

A descriptor reflecting on the complexity of a given molecule in terms of quantities of heteroatoms and their connectivity.

Molecular Formula

A molecular formula that captures the types and counts of atoms present in a molecule.

Molecular Mass

The mass of a given molecule, in Daltons.

Petitjean Geometric Shape Index

A descriptor that reflects on the shape of the molecular connectivity graph and factors in distance information.

Petitjean Number

An index characterizing molecular graph topology.

Petitjean Topological Shape Index

A descriptor that reflects on the topological shape of the molecular graph.

Relative Hydrophobic Surface Area

The fraction of the overall molecular surface area that is hydrophobic.

Topological Polar Surface Area

Total molecular surface area that has a non-zero partial charge.

Total Hydrophilic Surface Area

Sum of solvent-accessible surfaces of partially charged atoms.

Total Hydrophobic Surface Area

Sum of solvent-accessible surfaces of nonpolar atoms.

Total Partially Negative Surface Area

Total surface area of a molecule that has a partially negative charge.

Total Partially Positive Surface Area

Total molecular area that has a partially positive charge.

Vertex Adjacency Magnitude

A descriptor reflecting upon the number of bonds between heavy atoms in a given molecule.

Wiener Polarity Number

A descriptor that reflects on atomic connectivity and molecular topology.

XlogP

Group contribution-based octanol-water partition coefficient.

Zagreb Index

The sum of squares of all heavy atom degrees.

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