產(chǎn)品名稱：凇雪 ® 二甲基海因

產(chǎn)品名稱：5,5 -二甲基海因

英文名：5,5-Dimethylhydantoin

CAS No.：77-71-4

分子式：C₅H₈N₂O₂

分子量：128.13

外觀：白色棱狀體結(jié)晶或結(jié)晶性粉末

含量：≥99%

熔點：174~176℃

水份：≤0.5%

灰份：≤0.5%

pH：4～6

5,5-二甲基乙內(nèi)酰脲，又稱乙酰甲基脲、5,5-二甲基海因(DMH)。白色棱狀晶體或結(jié)晶性粉末，無異味，易溶于水、乙醇、乙醚、乙酸乙酯，略溶于異丙醇、丙酮、丁酮，而不溶于脂肪烴和三氯乙烯。

該產(chǎn)品是用途很廣的有機合成中間體，可用于合成多種精細化工產(chǎn)品。如氨基酸、特種環(huán)氧樹脂、水溶性樹脂、消毒劑1,3-二溴-5,5-二甲基海因、1-溴-3-氯-5,5-二甲基海因；可與金屬有機化合物反應(yīng)制取殺蟲劑、殺螨劑；也可用于電鍍、化妝品添加劑；由于其易溶于有機溴溶劑，可用作溴化劑；用作甲基丙烯酸聚合時的催化劑和穩(wěn)定劑；其衍生物的用途也很廣泛。

二甲基海因廣泛應(yīng)用于  醫(yī)藥領(lǐng)域中，它具有較強的止咳平喘作用，其止咳活性與氨茶堿持平，略低于可待因，單毒性卻遠遠小于上述二者。另外，它的衍生物作為藥物廣泛應(yīng)用于糖尿病方面、抗炎抗菌方面、腎衰方面和增強機體免疫方面等。

它的衍生物作為藥物具有很多優(yōu)點，其毒性極低，幾乎無副作用，適應(yīng)的病癥有炎癥、低血清蛋血癥以及用來消除自由基和活性氧等，其中抗炎是最主要的藥理作用，它的衍生物作為藥物可治療一些由于活性氧及自由基引起的疾病，包括重新灌注障礙，心肌梗塞，自動免疫疾病、關(guān)節(jié)病、皮膚病、敗血病、放射性疾病、休克及白內(nèi)障等。

5,5-Dimethylhydantoin

CAS No.：77-71-4

Formula：C₅H₈N₂O₂

Molecular Weight：128.13

Color/Form(Appearance)：White, crystalline solid

Purity：≥99%

Melting Point /range：174~176℃

Loss on Drying：≤0.5%

Ash after Burning：≤0.5%

pH：4～6

Characteristic：It is white to off-white crystals or crystalline powder which is soluble in water, hexanol(ethanol), ethyl acetate, dimethyl ether, slightly soluble in isopropylacetone, acetone, methyl ethyl ketone, and insoluble in aliphatic hydrocarbons, trichlorethylene.

The product's categories are miscellaneous natural products, water treatment chemicals, building blocks, heterocyclic building blocks and imidazolines / imidazolidines.

Hydantoin, also known as glycolyurea, is an imidazole analogue. It is a heterocyclic compound having two ketone groups in the five-membered ring structure composed of three carbon atoms and two nitrogen atoms at nonadjacent positions. It is a white crystalline compound; slightly soluble in water; melting at 222 C. Hydantoin and its derivatives are used in the preperation of textile softeners, lubricants, resins, and agrochemicals. They have bacteriostatic and bacteriacidal capabilities useful preservatives against bacteria and fungi. They have antibacterial, antifungal, antiprotozoal, and anthelmintic activity. They are used in manufacturing pharmaceuticals especially anticonvulsant drugs such as phenytoin, ethotoin, and methyphenytoin.

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