4-cyanobenzoic acid ethyl ester

A summary of the most common chemical descriptors (InChI Key and SMILES codes) for 4-cyanobenzoic acid ethyl ester are summarized together with 3D and 2D structures and relevant physico-chemical properties.

What is 4-cyanobenzoic acid ethyl ester?

The molecule 4-cyanobenzoic acid ethyl ester presents a molecular formula of C10H9NO2 and its IUPAC name is ethyl 4-cyanobenzoate.

3D structure

Cartesian coordinates

Geometry of 4-cyanobenzoic acid ethyl ester in x, y and z coordinates (Å units) to copy/paste elsewhere. Generated with Open Babel software.

2D drawing


4-cyanobenzoic acid ethyl ester JLSSWDFCYXSLQX-UHFFFAOYSA-N chemical compound 2D structure molecule svg
4-cyanobenzoic acid ethyl ester


Molecule descriptors

IUPAC name4-cyanobenzoic acid ethyl ester
InChI codeInChI=1S/C10H9NO2/c1-2-13-10(12)9-5-3-8(7-11)4-6-9/h3-6H,2H2,1H3

Physico-Chemical properties

IUPAC nameethyl 4-cyanobenzoate
Molecular formulaC10H9NO2
Molecular weight175.18
Melting point (ºC)
Boiling point (ºC)
Density (g/cm3)
Molar refractivity
Topological polar surface area50.1

LogP and topological polar surface area (TPSA) values were estimated using Open Babel software.

The n-octanol/water partition coeficient (Kow) data is applied in toxicology and drug research. Kow values are used, to guess the environmental fate of persistent organic pollutants. High partition coefficients values, tend to accumulate in the fatty tissue of organisms. Molecules with a log(Kow) (or LogP) greater than 5 are considered to bioaccumulate.

TPSA values are the sum of the surface area over all polar atoms or molecules, mainly oxygen and nitrogen, also including hydrogen atoms.

In medicinal chemistry, TPSA is used to assess the ability of a drug to permeabilise cells.

For molecules to penetrate the blood-brain barrier (and act on receptors in the central nervous system), TPSA values below 90 Å2 are required. Thus, molecules with a polar surface area greater than 140 Å2 tend to be poorly permeable to cell membranes.