Isophthalaldehyde
A summary of the most common chemical descriptors (InChI Key and SMILES codes) for Isophthalaldehyde are summarized together with 3D and 2D structures and relevant physico-chemical properties.
Table of Contents
What is the Isophthalaldehyde?
The molecule Isophthalaldehyde presents a molecular formula of C8H6O2 and its IUPAC name is isophthalaldehyde.
Isophthalaldehyde is an organic compound with the chemical formula C8H4O2. It is a white solid that is soluble in water and organic solvents. It is used as a reagent in organic synthesis and as a corrosion inhibitor..
Isophthalaldehyde was first prepared by the German chemist August Wilhelm von Hofmann in 1866 by the condensation of benzaldehyde and formaldehyde. It is also known as 1,3-benzenediol or 1,3-dihydroxybenzene..
The molecule has two benzene rings connected by a oxygen atom. The oxygen atom is bonded to two hydrogen atoms. The molecule has a molecular weight of 136.11 g/mol and a melting point of 46 °C..
Isophthalaldehyde is used as a reagent in the synthesis of dyes, pharmaceuticals, and other organic compounds. It is also used as a corrosion inhibitor in metal working fluids..
3D structure
Cartesian coordinates
Geometry of Isophthalaldehyde in x, y and z coordinates (Å units) to copy/paste elsewhere. Generated with Open Babel software.
2D drawing
Molecule descriptors
| IUPAC name | isophthalaldehyde |
| InChI code | InChI=1S/C6H12/c1-5(2)6-3-4-6/h5-6H,3-4H2,1-2H3 |
| InChI Key | IZALUMVGBVKPJD-UHFFFAOYSA-N |
| SMILES | O=Cc1cc(C=O)ccc1 |
Other names (synonyms)
IUPAC nomenclature provides a standardized method for naming chemical compounds. Although this system is widely used in chemistry, many chemical compounds have also other names commonly used in different contexts. These synonyms can come from a variety of sources and are used for a variety of purposes.
One common source of synonyms for chemical compounds is the common or trivial names, assigned on the basis of appearance, properties, or origin of the molecule.
Another source of synonyms are historical or obsolete names employed in the past, however replaced nowadays by more modern or standardized names.
In addition to common and historical names, chemical compounds may also have synonyms that are specific to a particular field or industry.
Reference codes for other databases
There exist several different chemical codes commonly used in orded to identify molecules:- CAS number (Chemical Abstracts Service Registry Number) is a unique identifier is assigned to every chemical compound indexed in the CAS database.
- Beilstein: The Beilstein database is a comprehensive source of information on organic chemistry, including information on chemical structures, properties, and reactions. The Beilstein database assigns unique identifiers which can be used to identify compounds in scientific literature and other sources.
- ChEBI (Chemical Entities of Biological Interest): ChEBI is a database of small chemical molecules that are of interest in the field of biology.
- PubChem CID (Compound Identifier): PubChem is a database of chemical compounds that is maintained by the National Institutes of Health (NIH).
- RTECS number (Registry of Toxic Effects of Chemical Substances): The RTECS is a database of information on the toxic effects of chemicals, including information on their structures and properties.
- ChEMBL (Compound Bioactivity Data): ChEMBL is a database of bioactivity data for small molecules, including information on their properties and structures.
- CompTox Dashboard (Environmental Protection Agency): The CompTox Dashboard is a database of information on the toxicology and environmental effects of chemicals.
Physico-Chemical properties
| IUPAC name | isophthalaldehyde |
| Molecular formula | C8H6O2 |
| Molecular weight | 134.132 |
| Melting point (ºC) | 89 |
| Boiling point (ºC) | - |
| Density (g/cm3) | - |
| Molar refractivity | 37.22 |
| LogP | 1.3 |
| Topological polar surface area | - |
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.