Hydantoin, or glycolylurea, is a heterocyclic organic compound with the formula CH 2 C(O)NHC(O)NH. It is a colorless solid that arises from the reaction of glycolic acid and urea. It is an oxidized derivative of imidazolidine.

2023年9月18日 · DMDM hydantoin is a preservative and antimicrobial agent found in a wide range of cosmetics and skin-care and hair-care products. It's considered a “ formaldehyde donor.”

乙内酰脲是一种有机化合物，分子式为c3h4n2o2，主要应用于化工、医药、纺织、生化等领域。

乙内酰脲，也称海因（Hydantoin），学名咪唑啉啶-2,4-二酮，是一个五元含氮 饱和 杂环化合物。 它可以看作一分子 乙醇酸 和一分子 尿素 发生两次 缩合 后生成的产物。

Hydantoin | C3H4N2O2 | CID 10006 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

乙内酰脲(Hydantoin)又名海因、妥因，化学名称为2，4-咪唑啉二酮，1861年Baeyer用尿酸降解物尿囊素通过加氢首次获得乙内酰脲，虽然乙内酰脲制备方法已经问世150余年，但真正对此物进行深入研究还是20世纪60年代之后的事。

Hydantoin (1), a common name for imidazolidine-2,4-dione, is a five-membered heterocycle that is one of the oxidized forms of imidazolidine with a cyclic urea core. From: European Journal of Medicinal Chemistry, 2019

Hydantoin anticonvulsants are structurally related to barbiturates. They have an allantoin heterocyclic base. Hydantoins slow the synaptic transmission by blocking sodium channels from recovering from the inactivated state, and inhibits neurons from firing.

2019年2月15日 · Hydantoin, imidazolidine-2,4-dione, is a non-aromatic five-membered heterocycle, which is considered a valuable, privileged scaffold in medicinal chemistry. The importance of the hydantoin scaffold in drug discovery has been reinforced by several medicines in clinical use, such as phenytoin, nitrofurantoin, and enzalutamide.

A bifunctional amine/squaramide catalyst promoted direct aldol addition of an hydantoin surrogate to pyridine 2-carbaldehyde N-oxides to afford adducts bearing two vicinal tertiary/quaternary carbons in high diastereo- and enantioselectivity (d.r. up to >20:1; ee up to 98 %) is reported.