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- methylphenylethyl hydantoin 甲苯乙基内酰脲
- The increaseing of hydrophilicity of insoluble hydantoin bactericide made t... 水不溶性海因类杀菌剂亲水性的增加,使杀菌率从869%25提高到971%25。
- INGREDIENTS:Mulberry Bark Licorice Root Arctostaphylos Uva Ursi Buchu Lemon DMDM Hydantoin. 新鲜药草萃取：桑树皮萃取液、甘草根萃取液、熊果叶天然萃取液、灌木萃取液、柠檬萃取液.
- The process of cyanide-free silver pulse electroplating is investigated in 5, 5-dimethyl hydantoin (DMH) bath. 研究了5，5-二甲基乙内酰脲(DMH)无氰脉冲镀银工艺。
- A cyanide-free silver electroplating process with 5,5-dimethyl hydantoin as coordination agent is studied. 研究了5,5-二甲基乙内酰脲为配位剂的无氰镀银工艺。
- The efficiency of DBDMH production is 90%with an optimum mol ratio of 1:2:2 of hydantoin: Br2: NaOH. 在适宜的反应物配比条件下即海因、溴、氢氧化钠的摩尔比为1:2:2;生成产物二溴海因的产率为90%25.
- And other products such as Hydantoin, Zinc glycinate, Sodium glycinate, Sodium glycine Carbonate, etc. 我司还有其他产品，例如海因，甘氨酸锌，甘氨酸钠，甘氨酸钠碳酸盐等等。
- As so far, there is just a little of literature of L252 monosubstituted hydantoin, and the details of the racemization of hydantoin are not revealed. 目前关于52单取代海因的消旋的文献非常少,海因消旋的细节问题也没有被完全揭示。
- The increaseing of hydrophilicity of insoluble hydantoin bactericide made the bactericidal rate increase from 86.9%to 97.1%. 水不溶性海因类杀菌剂亲水性的增加，使杀菌率从86.;9%25提高到97
- Hydantoin was synthesized from glycine and sodium cyanate, which was condensed with benzaldehyde to give monohydrated sodium phenylpyruvate in 67. 由甘氨酸和氰酸钠反应合成海因;然后与苯甲醛缩合;经碱水解得到一水合苯丙酮酸钠;总收率为67.;0%25。
- Therefore, the auto racemization of L252 monosubstituted hydantoin is an important step of the production of L2 or D2N2 carbamoylase. 因此,52单取代海因的自发消旋成为L2或D2N2氨甲酰氨基酸生产中的一个重要的步骤。
- A simple and rapid method for the spectrophotometric determination of hydantoin with chromotropic acid has been reported. 本文建立了简单、迅速地利用变色酸光度测定海因的方法。
- The effect of the solvent on bromination of 6 methoxy 2 acyl naphthalene and 2 methoxyl naphthalene with 1,3 dibromo 5,5 dimethyl hydantoin was studied. 考察了在不同极性溶剂中以 1 ,3 二溴 5,5 二甲基海因作溴化剂对溴化 6 甲氧基 2 酰基萘反应的影响。
- In the first part, chemical synthesis, including by acraldehyde, malonic ester, ami no lactone and others were discussed and synthesis by hydantoin was emphasized. 第一部分讨论了DL-蛋氨酸及其衍生物的化学合成，包括丙烯醛法、丙二酸酯法，氨基内酯法等，并着重介绍了海因法。
- Maternal teratogens that hae been reported in association with cleft lip and palate include alcohol, maternal phenylketonuria, hyperthermia, hydantoin, trimethadione, aminopterin, and methotrexate. 据报道与唇腭裂相关的母体的致畸因素有酒精、母体的苯丙酮尿症、高热、乙内酰脲、三甲双酮、氨喋呤、氨甲蝶呤等。
- Hydantoin was synthesized from glycine and sodium cyanate, which was condensed with benzaldehyde to give monohydrated sodium phenylpyruvate in 67.0% of overall yield after alkaline hydrolysis. 由甘氨酸和氰酸钠反应合成海因;然后与苯甲醛缩合;经碱水解得到一水合苯丙酮酸钠;总收率为67.;0%25。
- Methods to prepare hydantoin in normal pressure 常压下制备乙内酰脲两种方法的比较
- DMHF Dimethyl Hydantoin Formaldehyde Resin 二甲基乙内酰脲甲醛树脂
- SYNTHESIS OF 5 METHYL HYDANTOIN IN ONE STEP 一步法合成5-甲基海因
- Keywords hydantoin;sodium phenylpyruvate;prepare; 乙内酰脲;苯丙酮酸钠;制备;
