44isomer

44isomer is not a standard term in chemistry. In published work it may appear as an informal label used in a dataset, a computational project, or a catalog to identify a particular isomer associated with the number 44. The exact meaning is context dependent, and without accompanying descriptors the label is ambiguous. In general, isomerism refers to compounds that share the same molecular formula but differ in the arrangement of atoms or in their spatial orientation.

A true isomer could be a constitutional (structural) isomer, differing in connectivity, or a stereoisomer, where the atoms are connected in the same order but arranged differently in space. Stereoisomers further include enantiomers (non-superimposable mirror images) and diastereomers (non-mirror image stereoisomers), as well as geometric isomers such as cis/trans forms.

If a chemical is labeled as a 44isomer, the defining data would include: molecular formula, a unique connectivity map (often expressed as a SMILES string or a structural diagram), stereochemical specification if applicable, and an identifier such as an InChI or InChIKey, and ideally a CAS number or IUPAC name. Experimental or computational data—NMR spectra, mass spectra, infrared spectra, X-ray crystallography, or quantum-chemical calculations—may be cited to distinguish it from other isomers.

In databases and literature the practice is to move beyond a numeric label to a precise descriptor, ensuring unambiguous identification of the exact isomer.

See also: isomer, constitutional isomer, stereoisomer, enantiomer, InChI, SMILES, IUPAC, CAS.