2,5-ジヒドロキシベンズアルデヒド
2,5-ジヒドロキシベンズアルデヒド · ゲンチスアルデヒド · シアノヒドロキノン · ゲンチシンアルデヒド · 2,5‐ジヒドロキシベンズアルデヒド · 2,5-ジヒドロキシベンズアルデヒド, 98+% · ゲンチシン酸アルデヒド · 2-ホルミルヒドロキノン

識別子と物理属性
| CAS No. | 1194-98-5 |
|---|---|
| 分子式 | C7H6O3 |
| 平均分子量 | 138.12 g/mol |
| 単同位体質量 | 138.03169405 g/mol |
| SMILES | O=Cc1cc(O)ccc1O |
| InChIKey | CLFRCXCBWIQVRN-UHFFFAOYSA-N |
| PubChem CID | 70949 |
| ChEMBL | CHEMBL243186 |
| ChEBI | CHEBI:28508 |
| EC No. | 214-789-6 |
| DTXSID | DTXSID1061601 |
| 現地名 | 2,5-ジヒドロキシベンズアルデヒド |
化学・物理的性質
| XLogP | 1.2 |
|---|---|
| 極性表面積 | 57.5 |
| 水素結合供与体数 | 2 |
| 水素結合受容体数 | 3 |
| 回転可能結合数 | 1 |
| 重原子数 | 10 |
| 形式電荷 | 0 |
| 複雑度 | 124 |
| LogP(分配係数) | 0.54 |
| 溶解度 | 1.38E+04 mg/L @ 25 °C (exp)13.8g/l 可溶溶ける |
| 融点 | 100.00 to 103.00 °C. @ 760.00 mm Hg97-99 °C (lit.) |
| Physical Description | Solid |
| Collision Cross Section | 119.54 Ų [M-H]- [CCS Type: DTMethod: single field calibrated with Agilent tune mix (Agilent)] |
| 沸点 | 213.5°C (rough estimate) |
| 密度 | 1.2667 (rough estimate) |
| 屈折率 | 1.4797 (estimate) |
| 貯蔵条件 | Store below +30°C. |
| pKa(酸解離定数) | 8.89±0.18(Predicted) |
| 外観・状態 | 結晶性粉末 |
| 色 | イエローからカーキグリーン |
| BRN | 1363961 |
| InChI | 1S/C7H6O3/c8-4-5-3-6(9)1-2-7(5)10/h1-4,9-10H |
| InChIKey | CLFRCXCBWIQVRN-UHFFFAOYSA-N |
| SMILES | Oc1ccc(O)c(C=O)c1 |
| LogP(分配係数) | 0.540 |
| CAS データベース | 1194-98-5(CAS DataBase Reference) |
| NISTの化学物質情報 | 2,5-Dihydroxybenzaldehyde(1194-98-5) |
| EPAの化学物質情報 | Benzaldehyde, 2,5-dihydroxy- (1194-98-5) |
化学的特性
yellow to khaki-green crystalline powder
安全性と法規制
| GHS 分類 | WarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P272, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 50 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| 規制情報 | Benzaldehyde, 2,5-dihydroxy-: Does not have an individual approval but may be used under an appropriate group standard |
| Hazard Classes and Categories | Skin Irrit. 2 (100%) |
| 水環境危害等級(WGK) | 3 |
| TSCA 収載状態 | TSCA listed |
| 税関コード | 29124990 |
| 危険文句(R) | 36/37/38-43 |
| 危険表示 | Xi |
| hazard_note | Irritant |
| 安全措置(S) | 26-36/37/39-37/39-26,37/39-36 |
| 危険等級 | Eye Irrit. 2Skin Irrit. 2Skin Sens. 1STOT SE 3 |
| 貯蔵分類 | 13 - Non Combustible Solids |
用途
使用
2,5-Dihydroxybenzaldehyde (cas# 1194-98-5) is a compound useful in organic synthesis.
製法・合成法
製造方法
Add 80 mmol of dry paraformaldehyde to a mixture of 12 mmol of the phenol derivative and 2.5 mmol of MgO nanocrystalline (0.1 g). Expose the resulting mixture under microwave irradiation with a power of 650 W. Monitor the progress of the reaction by thin layer chromatography (TLC) developed by n-hexane : ethyl acetate (8 : 2). Add 100 mL of sulfuric acid (15% w/w) to the reaction mixture and heated at 50 °C for 15 min. Cool the reaction mixture to room temperature. Extract the product by dichloromethane (2 x 50 mL). Dry the organic layer over anhydrous magnesium sulphate. Evaporate the solution resulting from filtration to obtain the crude product. Purify the other product by column chromatography using n-hexane : ethyl acetate (95 : 5 to 70 : 30).