An alternative spelling or early chemical name for dioxane, a colorless liquid organic compound used in manufacturing and laboratories.
From 'di-' (two) + 'oxane' (a six-membered ring containing two oxygen atoms). The spelling 'dioxan' is an older variant used in older chemical literature.
Dioxan was used for decades in cosmetics and household products until researchers discovered it could cause cancer—now companies spend millions developing safer alternatives!
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