Citral

Citral (CAS No.: 5392-40-5) is a naturally occurring monoterpene aldehyde predominantly found in essential oils of lemongrass and citrus species, widely utilized as a bioactive small molecule in biochemical and pharmacological research. It has been characterized as an inhibitor of aldehyde dehydrogenase 1A (ALDH1A) and exhibits diverse biological activities, including the induction of apoptosis and cell cycle arrest, as well as suppression of cellular proliferation in various cancer cell models, with in vitro activity typically observed in the low to mid micromolar range. Mechanistic investigations suggest that Citral modulates multiple signaling pathways associated with oxidative stress, mitochondrial dysfunction, and inflammatory responses, although its precise molecular targets and regulatory networks remain incompletely defined. In addition to its effects on tumor-related pathways, Citral demonstrates antimicrobial and anti-inflammatory properties in cellular and preclinical experimental systems. It is commonly employed in cell-based assays and animal models to investigate mechanisms of disease modulation, pathway validation, and compound screening, with applied concentrations or doses varying according to specific experimental designs and research objectives.