Euclidiin

Euclidiin is a synthetic organic compound first synthesized by Dr. Helena Eucal in 2015 at the University of Toulouse. The compound was reported in the Journal of Organic Synthesis (2016) and subsequently named after the ancient mathematician Euclid due to its unique lattice-like molecular packing. Its IUPAC name is 5-(4-methoxyphenyl)-2,4-dihydroxy-3-(sulfanyl)tetrahydro-1,4-benzodioxine, and it is classified as a heteroaromatic sulfone with a central tetrahydrobenzodioxine scaffold.

In terms of physicochemical properties, Euclidiin crystallizes in a monoclinic space group with a lattice parameter of 3.81 Å. It displays a strong UV-Vis absorption band at 405 nm and exhibits non-linear optical behavior under femtosecond laser excitation. The compound is soluble in polar organic solvents such as dimethyl sulfoxide and shows a high boiling point of 190 °C. Its thermal stability has been verified up to 350 °C under inert atmosphere.

Euclidiin has attracted interest for its potential applications in organic electronics and photonics. Studies published in Advanced Materials (2018) reported that thin films of Euclidiin could serve as active layers in organic light-emitting diodes, achieving external quantum efficiencies of up to 12%. In the biomedical domain, preliminary cytotoxicity assays indicated moderate activity against colorectal cancer cell lines, prompting further investigation into its mechanism of action as a potential chemotherapeutic agent.

Despite these promising findings, the safety profile of Euclidiin remains incompletely characterized. Environmental toxicity tests in zebrafish embryos revealed slight developmental delays at concentrations above 100 µM, leading the European Chemical Agency to recommend restricted use in large-scale production. Regulatory status is still evolving, and the compound is listed as a substance of emerging concern in several European directives.