If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
246174
Trimethoxymethylsilane
98%
Synonym(s):
Methyltrimethoxysilane
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 250 mL | Check Cart for Availability | $53.20 | |
| 1 L | Check Cart for Availability | $169.00 |
About This Item
$53.20
Quality Level
assay
98%
form
liquid
refractive index
n20/D 1.371 (lit.)
bp
102-104 °C (lit.)
density
0.955 g/mL at 25 °C (lit.)
SMILES string
CO[Si](C)(OC)OC
InChI
1S/C4H12O3Si/c1-5-8(4,6-2)7-3/h1-4H3
InChI key
BFXIKLCIZHOAAZ-UHFFFAOYSA-N
General description
Application
- As a silica source for synthesizing polyethyleneimine-silica (PEI-silica) organic-inorganic hybrid particles.
- To transform hydrophilic ceramic surfaces to hydrophobic by modifying the -OH groups.
- To modify silica aerogels by inducing hydrophobicity and enhancing mechanical properties without affecting transparency.
1 of 1
This Item | |||
|---|---|---|---|
| assay 98% | assay ≥98.0% (GC) | assay 95% | assay 99% |
| density 0.955 g/mL at 25 °C (lit.) | density 0.955 g/mL at 25 °C (lit.) | density 0.955 g/mL at 25 °C (lit.) | density 0.895 g/mL at 25 °C (lit.) |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| refractive index n20/D 1.371 (lit.) | refractive index n20/D 1.371 | refractive index n20/D 1.371 (lit.) | refractive index n20/D 1.383 (lit.) |
| bp 102-104 °C (lit.) | bp 102-104 °C (lit.) | bp 102-104 °C (lit.) | bp 141-143 °C (lit.) |
| form liquid | form liquid | form liquid | form liquid |
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signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
48.2 °F
flash_point_c
9 °C
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 246174-1L | 04061838252692 |
| 246174-250ML | 04061825858784 |
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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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
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Good morning, we are testing using your product 246174 Trimethoxymethylsilane. Is it possible to obtain information about the main solvent component of the solution?
1 answer-
This product is a liquid as the melting point is listed as < -77 °C. This reagent is not sold as a solution in any solvent.
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