化工社化工社 化学情報印刷レポート · 研究参考用
3-メルカプト-2-ブタノン
3-メルカプト-2-ブタノン · 2-メルカプトブタン-3-オン · 3-メルカプトブタン-2-オン · 2-メルカプト-3-ブタノン · 3-MERCAPTOBUTANONE · FEMA 3298 · 2-MERCAPTO-3-BUTANONE · 3-MERCAPTOBUTAN-2-ONE

識別子と物理属性
| CAS No. | 40789-98-8 |
|---|---|
| 分子式 | C4H8OS |
| 平均分子量 | 104.17 g/mol |
| 単同位体質量 | 104.02958588 g/mol |
| SMILES | CC(=O)C(C)S |
| InChIKey | XLMPYCGSRHSSSX-UHFFFAOYSA-N |
| PubChem CID | 38679 |
| ChEBI | CHEBI:166838 |
| EC No. | 255-082-2 |
| DTXSID | DTXSID90866016 |
| 現地名 | 3-メルカプト-2-ブタノン |
化学・物理的性質
| XLogP | 0.7 |
|---|---|
| 極性表面積 | 18.1 |
| 水素結合供与体数 | 1 |
| 水素結合受容体数 | 2 |
| 回転可能結合数 | 1 |
| 重原子数 | 6 |
| 形式電荷 | 0 |
| 複雑度 | 60.6 |
| 食品添加物 | FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food |
| 密度 | 1.016 (20 °C)1.035 g/mL at 25 °C (lit.) |
| 香味料 | EU Flavoring substances |
| 溶解度 | slightly soluble in watersoluble in alcohol, ether, pyridine and aqueous alkalis(in ethanol) |
| 沸点 | 50 °C (18 mm Hg)48-49 °C/15 mmHg (lit.) |
| 屈折率 | 1.469-1.479n20/D 1.4352 |
| Physical Description | colourless or pale yellow liquid, becomes cloudy after short storage |
| FEMA | 3298 | 3-MERCAPTO-2-BUTANONE |
| 引火点 | 117 °F |
| 貯蔵条件 | Refrigerator |
| pKa(酸解離定数) | 8.38±0.10(Predicted) |
| 外観・状態 | clear liquid |
| 色 | Colorless to Light yellow |
| 比重 | 1.015 |
| 臭い | プロピレングリコール中0.10%。硫黄のタマネギのローストガス状の肉 |
| においのタイプ | 硫黄の |
| 由来生物 | synthetic |
| JECFA Number | 558 |
| 主な用途 | フレーバーそして香料 |
| InChI | 1S/C4H8OS/c1-3(5)4(2)6/h4,6H,1-2H3 |
| InChIKey | XLMPYCGSRHSSSX-UHFFFAOYSA-N |
| SMILES | CC(S)C(C)=O |
| LogP(分配係数) | 0.67 |
| CAS データベース | 40789-98-8(CAS DataBase Reference) |
| NISTの化学物質情報 | 2-Butanone, 3-mercapto-(40789-98-8) |
| EPAの化学物質情報 | 2-Butanone, 3-mercapto- (40789-98-8) |
化学的特性
Colorless liquid
安全性と法規制
| GHS 分類 | WarningH226 (11.7%): Flammable liquid and vapor [Warning Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 1458 reports by companies from 14 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| 規制情報 | Chemical: 2-Butanone, 3-mercapto-Status: Active Update: 24-09-2019 https://echa.europa.eu/registration-dossier/-/registered-dossier/204732-Butanone, 3-mercapto-: Does not have an individual approval but may be used under an appropriate group standard |
| Hazard Classes and Categories | Flam. Liq. 3 (11.7%) |
| 水環境危害等級(WGK) | 3 |
| TSCA 収載状態 | TSCA listed |
| RTECS 番号 | EL9050000 |
| 輸送番号(UN) | UN 1993 3/PG 2 |
| 税関コード | 29309090 |
| 危険文句(R) | 10-36/37/38 |
| 消防法 | 危-4-2-III |
| 危険表示 | Xi |
| 安全措置(S) | 26-36 |
| 危険等級 | 3Eye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3 |
| 包装等級 | III |
| 貯蔵分類 | 3 - Flammable liquids |
用途
用途
有機合成原料、香料材料。
一般的な説明
3-Mercapto-2-butanone is a sulfur-containing flavor compound mainly found in meat and meat products. It is formed by the Maillard reaction between sugars and cysteine or thiamin, which are known precursors for meat-like flavorings.
製法・合成法
製造方法
From 2,4,5-trimethyl-2-ethyl-3-thiazoline with butyl and hydrolysis; from oxo-compound with sulfur or polysulfides and ammonia at room temperature.