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.
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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
394882
N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide
>97%
Synonym(s):
MTBSTFA
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About This Item
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Product Name
N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide, >97%
InChI
1S/C9H18F3NOSi/c1-8(2,3)15(5,6)13(4)7(14)9(10,11)12/h1-6H3
SMILES string
CN(C(=O)C(F)(F)F)[Si](C)(C)C(C)(C)C
InChI key
QRKUHYFDBWGLHJ-UHFFFAOYSA-N
grade
derivatization grade
assay
>97%
form
liquid
refractive index
n20/D 1.402 (lit.)
bp
172-175 °C (lit.)
density
1.036 g/mL at 25 °C (lit.)
functional group
amine
fluoro
storage temp.
2-8°C
Quality Level
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This Item | 375934 | M0789 | 155195 |
|---|---|---|---|
| assay >97% | assay ≥95% | assay ≥97.0% (GC) | assay ≥99% |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| refractive index n20/D 1.402 (lit.) | refractive index - | refractive index n20/D 1.346 (lit.) | refractive index n20/D 1.384 (lit.) |
| bp 172-175 °C (lit.) | bp - | bp 121-122 °C (lit.) | bp 45-50 °C/14 mmHg (lit.) |
| form liquid | form liquid | form liquid | form liquid |
| storage temp. 2-8°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. - |
Application
- As a derivatizing agent in the GC-MS analysis of hydroxylated fluorenes and in the GC analysis of amino acids. [1]
- As an efficient silylating agent for different alcohols, thiols, phenols, carboxylic acids, amines, and amides.
- To functionalize multi-walled carbon nanotubes (MWCNTs) with polar groups.[2][3][4]
General description
comparable product
related product
signalword
Warning
hcodes
Hazard Classifications
Flam. Liq. 3
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
113.0 °F - closed cup
flash_point_c
45 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Results of a study involving the ability few Fluka silylating reagents to form GC-MS-compatible trimethylsilylmethyl derivatives of NSAIDs
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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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