ペントバルビタール
化学名:ペントバルビタール
CAS番号.76-74-4
英語名:Pentobarbital
CBNumberCB5402863
MFC11H18N2O3
MW226.27
MOL File76-74-4.mol
别名
5-エチル-5-[(R)-1-メチルブチル]ピリミジン-2,4,6(1H,3H,5H)-トリオン
5-エチル-5-(1-メチルブチル)ピリミジン-2,4,6(1H,3H,5H)-トリオン
ネンブタール
more
ペントバルビタール物理性質
融点 | 129.5°C |
沸点 | 367.89°C (rough estimate) |
比重(密度) | 1.1376 (rough estimate) |
屈折率 | 1.4620 (estimate) |
闪点 | 9℃ |
貯蔵温度 | 2-8°C |
溶解性 | 微量は水に溶け、エタノールに易溶。 アルカリ金属水酸化物、炭酸塩、アンモニアと水溶性化合物を形成する。 |
外見 | A neat solid |
酸解離定数(Pka) | pK1:8.11(0) (25°C) |
水溶解度 | 679mg/L |
CAS データベース | 76-74-4(CAS DataBase Reference) |
NISTの化学物質情報 | Pentobarbital(76-74-4) |
EPAの化学物質情報 | Pentobarbital (76-74-4) |
主な危険性 | T,F |
Rフレーズ | 25-63-39/23/24/25-36/38-23/24/25-11 |
Sフレーズ | 7-16-36/37-45-36/37/39-22 |
RIDADR | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
RTECS 番号 | CQ5775000 |
国連危険物分類 | 6.1(b) |
容器等級 | III |
HSコード | 2933530000 |
有毒物質データの | 76-74-4(Hazardous Substances Data) |
毒性 | A barbiturate that causes CNS depression, apparently due to a facilitation of GABA-ergic inhibition. It appears that the site of action of pentobarbital may be the macromolecular complex made up of a GABA receptor, chloride channel, benzodiazepine-binding site, and picrotoxin-binding site. Barbiturates have been shown to compete for dihydropicrotoxinin-binding sites. In clinical use, barbiturates such as pentobarbital have been largely replaced as sedative-hypnotics by the much safer benzodiazepines. The sedative-hypnotic properties of barbiturates may lead to abuse, as tolerance and dependence are known to occur. In animals, pentobarbital is routinely used for its anesthetic and anticonvulsant properties, as well as for euthanasia. Pentobarbital, like other barbiturates, can induce the metabolism of other compounds by altering cytochrome P450 activity. The oral LD50 in rats is 118 mg/kg. |