Monarchin

Monarchin is a term that has appeared in various contexts, but it does not refer to a single, officially defined substance. The lack of a standardized identity means that the meaning of monarchin is highly context-dependent, and references should be checked carefully.

In entomology and chemical ecology, monarchin has been used informally by some researchers to denote odorants or chemical signals associated with the monarch butterfly (Danaus plexippus). However, there is no peer-reviewed publication that establishes monarchin as a specific, named compound or a defined pheromone blend. When used, it is typically as a provisional label rather than a formal chemical name.

In biochemistry or pharmacology, monarchin may appear as a code name or placeholder for a synthetic molecule or peptide under study. Such usage is unofficial, and monarchin is not listed as an approved or widely recognized compound in major chemical or biological databases.

In popular culture and fiction, monarchin can be used as a fictional material or compound with various imagined properties. These usages are unrelated to any real-world chemical identity.

Nomenclature and databases: Because monarchin is not an officially recognized term, definitions and identifiers (such as CAS numbers or PubChem IDs) do not consistently exist across sources. Readers should consult the original literature to determine what a given author intends by monarchin.

See also: Monarch butterfly, pheromone, peptide, chemical ecology.