3-Hydroxybenzaldehyde

3-Hydroxybenzaldehyde (CAS No.: 100-83-4) is a small aromatic aldehyde widely utilized as a biochemical intermediate and research reagent in life sciences and drug discovery, particularly in studies of vascular biology and metabolic enzyme function. It is an endogenous metabolite generated through the oxidation of 3-hydroxybenzyl alcohol by dehydrogenases and serves as a substrate for aldehyde dehydrogenase (ALDH) in both rodent and human systems, positioning it as a useful probe for investigating ALDH-mediated metabolic pathways and redox homeostasis. Functionally, this compound has been reported to exhibit vasculoprotective properties in vitro and in vivo, potentially through modulation of endothelial cell function and related signaling processes, making it relevant for mechanistic studies of vascular dysfunction and atherosclerosis. In addition, it acts as a precursor for phenolic derivatives such as protocatechuic aldehyde, further supporting its role in phenolic metabolism research and synthetic applications. While detailed potency metrics are not consistently defined, experimental studies typically employ concentrations in the low micromolar to millimolar range depending on assay conditions and model systems. 3-Hydroxybenzaldehyde is therefore broadly applied in cell-based assays, enzyme activity studies, and animal models aimed at elucidating oxidative stress responses, endothelial regulation, and the biochemical basis of cardiovascular-related pathophysiology, as well as serving as a versatile building block in organic synthesis.