5,5 -二甲基海因

产品名称：凇雪 ® 二甲基海因

产品名称：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

外观：白色棱状体结晶或结晶性粉末

含量：≥99%

熔点：174~176℃

水份：≤0.5%

灰份：≤0.5%

pH：4～6

5,5-二甲基乙内酰脲，又称乙酰甲基脲、5,5-二甲基海因(DMH)。白色棱状晶体或结晶性粉末，无异味，易溶于水、乙醇、乙醚、乙酸乙酯，略溶于异丙醇、丙酮、丁酮，而不溶于脂肪烃和三氯乙烯。

该产品是用途很广的有机合成中间体，可用于合成多种精细化工产品。如氨基酸、特种环氧树脂、水溶性树脂、消毒剂1,3-二溴-5,5-二甲基海因、1-溴-3-氯-5,5-二甲基海因；可与金属有机化合物反应制取杀虫剂、杀螨剂；也可用于电镀、化妆品添加剂；由于其易溶于有机溴溶剂，可用作溴化剂；用作甲基丙烯酸聚合时的催化剂和稳定剂；其衍生物的用途也很广泛。

二甲基海因广泛应用于  医药领域中，它具有较强的止咳平喘作用，其止咳活性与氨茶碱持平，略低于可待因，单毒性却远远小于上述二者。另外，它的衍生物作为药物广泛应用于糖尿病方面、抗炎抗菌方面、肾衰方面和增强机体免疫方面等。

它的衍生物作为药物具有很多优点，其毒性极低，几乎无副作用，适应的病症有炎症、低血清蛋血症以及用来消除自由基和活性氧等，其中抗炎是最主要的药理作用，它的衍生物作为药物可治疗一些由于活性氧及自由基引起的疾病，包括重新灌注障碍，心肌梗塞，自动免疫疾病、关节病、皮肤病、败血病、放射性疾病、休克及白内障等。

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.

PACKING： Plastic Woven Bags；25kgs in fiber drum；or as customer request

Delivery Detail: within one week after payment confirmed