中文名 | 5,5-二苯基海因 |
英文名 | 5,5-Diphenylhydantoin |
别名 | 苯妥英 苯妥英 溶液 5-二苯基海因 苯妥英标准溶液 5,5-二苯基海因 5,5-二苯基乙内酰脲 5,5-联苯基乙内酰脲 5,5-二苯基海因 溶液 5,5-二苯基乙内酰脲(苯妥英) |
英文别名 | Dantinal Phenytoin Dantoinal PHENYTOIN,USP Dantoinalklinos Dantoinal klinos 5,5-Diphenylhydantoin 4,5-Diphenyl-4-imidazoline-2-one 5,5-Diphenylhydantoin-2-13C, 3-15N 5,5-Diphenyltetrahydroglyoxalin-4-one sodium 5-oxo-4,4-diphenyl-4,5-dihydro-1H-imidazol-2-olate |
CAS | 57-41-0 |
EINECS | 200-328-6 |
化学式 | C15H12N2O2 |
分子量 | 252.27 |
InChI | InChI=1/C15H12N2O2.Na/c18-13-15(17-14(19)16-13,11-7-3-1-4-8-11)12-9-5-2-6-10-12;/h1-10H,(H2,16,17,18,19);/q;+1/p-1 |
InChIKey | CXOFVDLJLONNDW-UHFFFAOYSA-N |
密度 | 1.1562 (rough estimate) |
熔点 | 293-295 °C (lit.) |
沸点 | 395.45°C (rough estimate) |
闪点 | 11°C |
水溶性 | <0.01 g/100 mL at 19 ºC |
蒸汽压 | 4.29E-08mmHg at 25°C |
溶解度 | DMSO: 可溶性 |
折射率 | 1.5906 (estimate) |
酸度系数 | pKa 8.43(H2O,t =25,I=0.025) (Uncertain) |
存储条件 | 2-8°C |
稳定性 | 稳定。可燃。与强氧化剂、强碱不相容。 |
外观 | 粉末 |
颜色 | White to almost white |
Merck | 14,7322 |
BRN | 384532 |
MDL号 | MFCD00005264 |
体外研究 | Phenytoin is an antiepileptic drug. It is useful to partial seizures and generalized tonic-clonic seizures but not primary generalized seizures such as absence seizures or myoclonic seizures. Phenytoin is believed to protect against seizures by causing voltage-dependent block of voltage-gated sodium channels. Phenytoin has low affinity for resting sodium channels at hyperpolarized membrane potentials. When neurons are depolarized and the channels transition into the open and inactivated states, greater binding and block occur. The inhibitory potency is strongly use dependent, so that block accumulates with prolonged or repetitive activation, such as occurs during a seizure discharge. The blocking of sodium channels by phenytoin is of slow onset. The time course of fast sodium currents is therefore not altered in the presence of the drug and action potentials evoked by synaptic depolarizations of ordinary duration are not blocked. Thus phenytoin is able to selectively inhibit pathological hyperexcitability in epilepsy without unduly impairing ongoing activity. Phenytoin also blocks persistent sodium current and this may be of particular importance in seizure control. Phenytoin is a class 1b antiarrhythmic. |
体内研究 | Phenytoin (5,5-Diphenylhydantoin; 60 mg/kg; daily; 28 days ) reduces tumour growth in six week-old female Rag2 -/- Il2rg -/- mice with MDA-MB-231 cells. |
危险品标志 | T - 有毒物品 Xn - 有害物品 F - 易燃物品 |
风险术语 | R45 - 可能致癌。 R61 - 可能对胎儿造成伤害。 R22 - 吞食有害。 R63 - 可能有对胎儿造成伤害的危险。 R40 - 少数报道有致癌后果。 R39/23/24/25 - R23/24/25 - 吸入、皮肤接触及吞食有毒。 R11 - 高度易燃。 R20/21/22 - 吸入、皮肤接触及吞食有害。 |
安全术语 | S53 - 避免接触,使用前须获得特别指示说明。 S45 - 若发生事故或感不适,立即就医(可能的话,出示其标签)。 S36/37 - 穿戴适当的防护服和手套。 S16 - 远离火源。 S7 - 保持容器密封。 |
危险品运输编号 | 2811 |
WGK Germany | 3 |
RTECS | MU1050000 |
海关编号 | 29332100 |
Hazard Class | 6.1(b) |
Packing Group | II |
上游原料 | 苯甲醛 碳酸铵 氰化钾 苯妥英钠杂质E 2-氨基-3,5-二氢-4H-咪唑-4-酮 5,5-二苯基-2-硫代海因 |
下游产品 | 3A,6A-二苯基八氢咪唑并[4,5-D]咪唑-2,5-二酮 |
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