化工社化工社 化学情報印刷レポート · 研究参考用
p-キシロキノン
p-キシロキノン · 2,5-ジメチル-1,4-ベンゾキノン · 2,5-ジメチル-2,5-シクロヘキサジエン-1,4-ジオン · フロロン-キノン · p-キシロ-p-キノン · 2,5-ジメチル-p-ベンゾキノン · 2,5-ジメチルキノン · 2,5-ジメチル-1,4-ベンゼンジオン

識別子と物理属性
| CAS No. | 137-18-8 |
|---|---|
| 分子式 | C8H8O2 |
| 平均分子量 | 136.15 g/mol |
| 単同位体質量 | 136.0524295 g/mol |
| SMILES | CC1=CC(=O)C(C)=CC1=O |
| InChIKey | MYKLQMNSFPAPLZ-UHFFFAOYSA-N |
| PubChem CID | 8718 |
| ChEMBL | CHEMBL150457 |
| EC No. | 205-283-6 |
| DTXSID | DTXSID0059669 |
| 現地名 | p-キシロキノン |
化学・物理的性質
| XLogP | 1.3 |
|---|---|
| 極性表面積 | 34.1 |
| 水素結合供与体数 | 0 |
| 水素結合受容体数 | 2 |
| 回転可能結合数 | 0 |
| 重原子数 | 10 |
| 形式電荷 | 0 |
| 複雑度 | 228 |
| 物質分類 | Other Classes -> Aromatic Ketones |
| SpringerMaterials Properties | Boiling point |
| LogP(分配係数) | 1.24 |
| 蒸気圧 | 0.02 [mmHg] |
| Physical Description | Yellow solid[Acros Organics MSDS] |
| 融点 | 123-125 °C |
| 沸点 | 69-80℃ |
| 密度 | 1.1150 (rough estimate) |
| 屈折率 | 1.5090 (estimate) |
| 貯蔵条件 | 2-8°C |
| 溶解度 | トルエン:可溶0.5g/10mL、透明~微濁、黄色~褐色 |
| 外観・状態 | 結晶性粉末 |
| 色 | 黄色から茶色 |
| BRN | 2041348 |
| InChI | 1S/C8H8O2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3 |
| InChIKey | MYKLQMNSFPAPLZ-UHFFFAOYSA-N |
| SMILES | CC1=CC(=O)C(C)=CC1=O |
| CAS データベース | 137-18-8 |
| EPAの化学物質情報 | 2,5-Cyclohexadiene-1,4-dione, 2,5-dimethyl- (137-18-8) |
化学的特性
yellow to brown crystalline powder
安全性と法規制
| GHS 分類 | DangerH301 (97.6%): Toxic if swallowed [Danger Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 41 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| 有害性の概要 | Causes somnolence and convulsions in oral, intraperitoneal, and subcutaneous lethal-dose studies of miceOral LD50 (mouse) = 290 mg/kg[RTECS] An irritant[Acros Organics MSDS] See Quinone. |
| Hazard Classes and Categories | Acute Tox. 3 (97.6%) |
| 水環境危害等級(WGK) | 3 |
| TSCA 収載状態 | TSCA listed |
| RTECS 番号 | DK4800000 |
| 輸送番号(UN) | UN 2811 6.1/PG 3 |
| 税関コード | 29146990 |
| 危険文句(R) | 22-36/37/38 |
| 危険表示 | Xn |
| 安全措置(S) | 26-37/39 |
| 危険等級 | Acute Tox. 3 OralEye Irrit. 2Skin Irrit. 2STOT SE 3 |
| 貯蔵分類 | 6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects |
用途
使用
2,5-Dimethyl-1,4-benzoquinone may be used in a key step involved in the total synthesis of ()-cyathin A3.
一般的な説明
2,5-Dimethyl-1,4-benzoquinone is a quinone derivative. Its reaction with jack bean urease in phosphate buffer, pH 7.8 has been studied. It is present as one of the component of defensive secretion of opilionid Acanthopachylus aculeatus. It has been investigated as inhibitor of jack bean urease in 50mM phosphate buffer, pH 7.0.
製法・合成法
純化方法
Crystallise the quinone from EtOH. [Beilstein 7 IV 2090.]