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CAS RN: 17887-80-8 | Product Number: B3563
1,3-Bis(trimethylsilyloxy)propane
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Purity: >98.0%(GC)
Synonyms:
Product Documents:
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| Product Number | B3563 |
Purity / Analysis Method 
|
>98.0%(GC) |
| Molecular Formula / Molecular Weight | C__9H__2__4O__2Si__2 = 220.46 |
| Physical State (20 deg.C) | Liquid |
| Storage Temperature
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 17887-80-8 |
| Reaxys Registry Number | 1748398 |
| PubChem Substance ID | 125307383 |
Specifications
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(GC) | min. 98.0 % |
| NMR | confirm to structure |
Properties (reference)
| Boiling Point | 77 °C/15 mmHg |
| Flash point | 62 °C |
| Specific Gravity (20/20) | 0.84 |
| Refractive Index | 1.41 |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H315 : Causes skin irritation. H319 : Causes serious eye irritation. H227 : Combustible liquid. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P403 + P235 : Store in a well-ventilated place. Keep cool. |
Related Laws:
Transport Information:
| H.S.code* | 2931.90-000 |
Application
Acetalization of Carbonyl Compounds
Typical Procedure: To a solution of carbonyl compound (2 mmol), 1,3-bis(trimethylsilyloxy)propane (2.6–10 mmol) in anhydrous CH2Cl2 (10 mL), NBS (0.06–0.14 mmol) is added, and the resulting solution is stirred at room temperature. After completion of the reaction (TLC or GC), a cold aq. solution of NaOH (5%, 25 mL) is added and the mixture is extracted with CH2Cl2 (3 × 15 mL). The organic extracts are washed successively with NaOH (5%, 15 mL), water (4 × 15 mL) and dried over anhydrous Na2SO4. Evaporation of the solvent under reduced pressure gives almost pure products. Further purification is carried out by vacuum distillation, re-crystallization in appropriate solvent or flash chromatography using appropriate eluent to afford pure acetals.
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