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
440175
Trimethoxymethylsilane
95%
Synonym(s):
MTMS, Methyltrimethoxysilane
About This Item
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Quality Level
Assay
95%
form
liquid
impurities
3% methyl alcohol
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
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Related Categories
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This Item | 69471 | 339644 | 175579 |
|---|---|---|---|
| assay 95% | assay ≥98.0% (GC) | assay 90% | assay 99% |
| 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.) | density 0.895 g/mL at 25 °C (lit.) |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| bp 102-104 °C (lit.) | bp 102-104 °C (lit.) | bp 141-143 °C (lit.) | bp 141-143 °C (lit.) |
| refractive index n20/D 1.371 (lit.) | refractive index n20/D 1.371 (lit.) | refractive index n20/D 1.383 (lit.) | refractive index n20/D 1.383 (lit.) |
| form liquid | form liquid | form liquid | form liquid |
Application
- Monolithic silica columns with various skeleton sizes for capillary liquid chromatography.[1]
- Ionogels, where an ionic liquid is confined within silica-derived networks.[2]
- Monolithic silica aerogels via acid-base sol-gel polymerization.[3]
- Hydrophobic, flexible, and ultralightweight silylated nanocellulose sponges for the selective removal of oil from water.[4]
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Liq. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
48.2 °F
Flash Point(C)
9 °C
Personal Protective Equipment
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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?
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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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