Also known as diethylene imidoxide, diethylene oximide, tetrahydro-1,4-oxazine, tetrahydro-p-oxazine
Morpholine is an organic chemical compound having the chemical formula O(CH2CH2)2NH. This heterocycle features both amine and ether functional groups. Because of the amine, morpholine is a base; its conjugate acid is called morpholinium. For example, treating morpholine with hydrochloric acid generates the salt morpholinium chloride. It is a colorless liquid with a weak, ammonia- or fish-like odor. The naming of morpholine is attributed to Ludwig Knorr, who incorrectly believed it to be part of the structure of morphine.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).