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| | (R,R)-(-)-2,3-ブタンジオール 製品概要 |
| 化学名: | (R,R)-(-)-2,3-ブタンジオール | | 英語化学名: | (R,R)-2,3-Butanediol | | 别名: | D-Butane-2,3-diol;(2R,3R)-2,3-BUTANEDIOL;(R,R)-(-)-2,3-BUTANEDIOL;(R,R)-2,3-BUTANEDIOL;(R,R)-(-)-2,3-BUTYLENE GLYCOL;(R,R)-(-)-2,3-DIHYDROXYBUTANE;(R-(R,R))-butane-2,3-diol;Dg-threo-butane-2,3-diol | | CAS番号: | 24347-58-8 | | 分子式: | C4H10O2 | | 分子量: | 90.12 | | EINECS: | 246-186-9 | | カテゴリ情報: | Polyols;Enantiomer Excess & Absolute Configuration Determination;Simple Alcohols (Chiral);Synthetic Organic Chemistry;Chiral Compound;Chiral Building Blocks;Organic Building Blocks;Analytical Chemistry;Chiral Building Blocks;e.e. / Absolute Configuration Determination (NMR);Chiral Compounds;Diols | | Mol File: | 24347-58-8.mol |  |
| | (R,R)-(-)-2,3-ブタンジオール 物理性質 |
| 融点 | 16 °C | | 沸点 | 77.3-77.4 °C/10 mmHg (lit.) | | 比旋光度 | -13 º (neat) | | 比重(密度) | 0.987 g/mL at 25 °C (lit.) | | 蒸気圧 | 82.8Pa at 25℃ | | 屈折率 | n20/D 1.433 | | 闪点 | 185 °F | | 貯蔵温度 | Sealed in dry,Store in freezer, under -20°C | | 酸解離定数(Pka) | 14.67±0.20(Predicted) | | 外見 | Liquid | | 色 | Clear colorless | | 光学活性 (optical activity) | [α]23/D 13.2°, neat | | 水溶解度 | soluble | | Sensitive | Hygroscopic | | Merck | 14,1568 | | BRN | 4290593 | | 安定性： | Stable. Hygroscopic, air sensitive. Incompatible with strong oxidizing agents, acid anhydrides, acid chlorides, chloroformates, reducing agents. Combustible. | | InChIKey | OWBTYPJTUOEWEK-QWWZWVQMSA-N | | LogP | -0.72 at 22℃ | | CAS データベース | 24347-58-8(CAS DataBase Reference) | | NISTの化学物質情報 | 2,3-Butanediol, [R-(R*,R*)]-(24347-58-8) |
| | (R,R)-(-)-2,3-ブタンジオール Usage And Synthesis |
| 外観 | 白色/無色～うすい黄色粉末～塊～透明液体 | | 化学的特性 | colourless or slightly brown liquid | | 使用 | C2 symmetric chiral diol with versatile applications as a chiral auxiliary, building block, and chiral ligand. Cyclocondenses with ketones for 13C NMR determination of optical purity. | | 使用 | (2R,3R)-(-)-2,3-Butanediol is used as a chiral auxiliary, chiral ligand and building block. Cyclocondenses with ketones for (13)C NMR determination of optical purity. It is used in the resolution of carbonyl compounds in gas chromatography. | | 定義 | ChEBI: The (R,R) diastereoisomer of butane-2,3-diol. | | 一般的な説明 | (2R,3R)-(-)-2,3-Butanediol is a key building block in pharmaceutical industry. | | 燃焼性と爆発性 | Not classified | | 純化方法 | Purify it by fractional distillation. The bis-(4-nitrobenzoate) has m 141-142o and [] (-) or (+) 52o (c 4 CHCl3). [Ghirardelli & Lucas J Am Chem Soc 79 734 1957, Rubin et al. J Am Chem Soc 74 425 1952, Neish Can J Res 27 6 1949, Neish & Ledingham Can J Res 27 694 1949, Beilstein 1 IV 2524-2525.] |
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