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CAS RN: 681-84-5 | 產品號碼: T0588
Tetramethyl Orthosilicate
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| 包裝 | 價格 | 同一天 | 2-3个工作日 |
|---|---|---|---|
| 25G |
NT$1,160
|
9 | ≥100 |
| 100G |
NT$2,800
|
7 | ≥100 |
| 500G |
NT$7,320
|
31 | ≥100 |
* 以上價格已含運費關稅等但一些需要海運以及乾冰運輸的產品除外,詳情請與
當地經銷商
洽詢。
* TCI會時常優化儲存條件,儲存溫度請以在線目錄為準，敬請留意。
| 產品號碼 | T0588 |
| 純度/分析方法 | >99.0%(GC) |
| 分子式 / 分子量 | C__4H__1__2O__4Si = 152.22 |
| 外觀與形狀（20°C） | Liquid |
| 儲存條件 | Room Temperature (Recommended in a cool and dark place, <15°C) |
| 儲存在惰性氣體下 | Store under inert gas |
| 應避免的情況 | Moisture Sensitive |
| CAS RN | 681-84-5 |
| Reaxys-RN | 1699658 |
| PubChem Substance ID | 87576485 |
| SDBS (AIST Spectral DB) | 5354 |
| MDL編號 | MFCD00008341 |
產品規格
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(GC) | min. 99.0 % |
性質
| 熔點 | -4 °C |
| 沸點 | 122 °C |
| flp | 29 °C |
| 比重 | 1.03 |
| 折射率 | 1.37 |
GHS
| 圖形表示 |
|
| 信號詞 | Danger |
| 危險性說明 | H330 : Fatal if inhaled. H315 : Causes skin irritation. H318 : Causes serious eye damage. H371 : May cause damage to organs. H372 : Causes damage to organs through prolonged or repeated exposure. H373 : May cause damage to organs through prolonged or repeated exposure. H226 : Flammable liquid and vapor. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P260 : Do not breathe dust/ fume/ gas/ mist/ vapors/ spray. P270 : Do not eat, drink or smoke when using this product. P240 : Ground/bond container and receiving equipment. P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking. P233 : Keep container tightly closed. P243 : Take precautionary measures against static discharge. P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment. P242 : Use only non-sparking tools. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P284 : Wear respiratory protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P308 + P311 : IF exposed or concerned: Call a POISON CENTER/doctor. P362 + P364 : Take off contaminated clothing and wash it before reuse. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. P403 + P233 : Store in a well-ventilated place. Keep container tightly closed. P403 + P235 : Store in a well-ventilated place. Keep cool. P405 : Store locked up. |
相關法規
| RTECS # | VV9800000 |
運輸資料
| UN編號 | UN2606 |
| 類別 | 6.1 / 3 |
| 包裝類別 | I |
| 航空運輸 | Forbidden for Air Transport |
| HS編碼* | 2920.90-000 |
Application
Tetramethyl Orthosilicate (TMOS) as a Direct Amidation Reagent
4-Methylbenzylamine (274 mg, 2 mmol), benzoic acid (244 mg, 2 mmol), toluene (9.4 mL) and tetramethylorthosilicate (592 μL, 4 mmol) are charged into flask. This mixture is purged under nitrogen after the mixture is heated to reflux. After the reaction has completed, the volatiles are removed in vacuo. THF (10 mL) is added. Aqueous K2CO3 solution (0.3 M, 30 mL, 9 mmol) is added, then solid NaCl is added until saturation is observed. The aqueous phase is extracted with THF, and the combined organic layers are dried over sodium sulfate, filtered and concentrated in vacuo to afford the N-(4-methylbenzyl)benzamide (441 mg, 98% yield) as a colorless solid.
References
- Tetramethyl Orthosilicate (TMOS) as a Reagent of Direct Amidation of Carboxylic Acids
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