A liquid hydrocarbon consisting of two fused cyclohexane rings; used as a solvent and in various chemical processes.
From deca- (ten) + -lin (hydrocarbon suffix). The name refers to the ten carbon atoms arranged in its molecular structure. It's also called decahydronaphthalene.
Decalin is a chemist's Swiss Army knife—it can dissolve things that water won't touch, making it essential for varnishes, extracting oils, and even synthesizing medicines. Its structure is like two hexagons fused together!
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