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238902
2-(Trimethylsilyl)ethoxymethyl chloride
technical grade
Synonim(y):
(2-Chloromethoxyethyl)trimethylsilane, Chloromethyl 2-trimethylsilylethyl ether, SEM-Cl, SEM-chloride
Wybierz wielkość
| Do Państwa/SKU | Dostępność | Cena netto |
|---|---|---|
1 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 198,00 zł 148,50 zł |
5 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 684,00 zł 513,00 zł |
25 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 2440,00 zł 1830,00 zł |
100 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 7900,00 zł |
Informacje o tej pozycji
148,50 zł
Cena katalogowa198,00 złZaoszczędź 25%grade
technical grade
Quality Segment
form
liquid
reaction suitability
reactivity: alcohol reactive, reactivity: amine reactive, reagent type: protection reagent
refractive index
n
bp
170-172 °C (lit.), 57-59 °C/8 mmHg (lit.)
density
0.942 g/mL at 25 °C (lit.)
functional group
chloro, ether
storage temp.
−20°C
SMILES string
C[Si](C)(C)CCOCCl
InChI
1S/C6H15ClOSi/c1-9(2,3)5-4-8-6-7/h4-6H2,1-3H3
InChI key
BPXKZEMBEZGUAH-UHFFFAOYSA-N
General description
Application
Features and Benefits
Disclaimer
1 of 1
Ta pozycja | |||
|---|---|---|---|
| description technical grade | description ≥95.0% (GC) | description 97% | description Selectophore™ |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| bp 170-172 °C (lit.), 57-59 °C/8 mmHg (lit.) | bp 170-172 °C (lit.), 57-59 °C/8 mmHg (lit.) | bp - | bp - |
| form liquid | form liquid | form solid | form crystals |
| storage temp. −20°C | storage temp. −20°C | storage temp. - | storage temp. - |
| refractive index n | refractive index n | refractive index - | refractive index - |
| grade technical grade | grade - | grade - | grade - |
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signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 3 - Skin Corr. 1B
Klasa składowania
3 - Flammable liquids
wgk
WGK 3
flash_point_f
114.8 °F - closed cup
flash_point_c
46 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
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Why is Product 238902 2-(Trimethylsilyl)ethoxymethyl chloride, such a popular hydroxyl protecting agent?
1 answer-
2-(Trimethylsilyl)ethoxymethyl chloride is widely used in the protection of alcohols because the SEM ethers are easily prepared. They are stable to a number of synthetic transformations, and they are easily removed.
Helpful?
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What are the advantaged of using Product 238902, 2-(Trimethylsilyl)ethoxymethyl chloride, in carbohydrate chemistry?
1 answer-
In carbohydrate chemistry, the SEM group has shown distinct advantages over other groups such as the 2-methoxyethoxymethyl (MEM) group, because the SEM group is removed under milder acidic conditions.
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Are SEM protected carboxylic acids like Product 238902 stable enough for chromatography?
1 answer-
SEM protected carboxylic acids are stable enough for chromatography but are readily deprotected without affecting either acid of base-sensitive functionalities.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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How is the SEM group, Product 238902, 2-(Trimethylsilyl)ethoxymethyl chloride, used in the protection of nitrogen atoms in heterocyclic compounds?
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In SEM protected indole, the aminal oxygen is used to direct lithiation to the 2-position. A similar approach has been used for pyrroles and imidazoles.
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