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Merck

92361

Chlorotrimethylsilane

≥98.0% (GC)

Synonym(s):

TMCS, Trimethylchlorosilane, Trimethylsilyl chloride

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About This Item

Linear Formula:
(CH3)3SiCl
CAS Number:
Molecular Weight:
108.64
UNSPSC Code:
12352302
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-900-5
Beilstein/REAXYS Number:
1209232
MDL number:
Assay:
≥98.0% (GC)
Form:
liquid

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Product Name

Chlorotrimethylsilane, ≥98.0% (GC)

InChI key

IJOOHPMOJXWVHK-UHFFFAOYSA-N

InChI

1S/C3H9ClSi/c1-5(2,3)4/h1-3H3

SMILES string

C[Si](C)(C)Cl

vapor density

3.7 (vs air)

vapor pressure

100 mmHg ( 25 °C)

assay

≥98.0% (GC)

form

liquid

autoignition temp.

752 °F

expl. lim.

6.4 %

refractive index

n20/D 1.387 (lit.)

bp

57 °C (lit.)

mp

−40 °C (lit.)

density

0.856 g/mL at 25 °C (lit.)

Quality Level

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This Item
386529955418.18737
assay

≥98.0% (GC)

assay

≥99%

assay

≥99.0% (GC)

assay

≥99.0% (GC)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

mp

−40 °C (lit.)

mp

−40 °C (lit.)

mp

−40 °C (lit.)

mp

-58 °C

density

0.856 g/mL at 25 °C (lit.)

density

0.856 g/mL at 25 °C (lit.)

density

0.856 g/mL at 25 °C (lit.)

density

0.86 g/cm3 at 20 °C

bp

57 °C (lit.)

bp

57 °C (lit.)

bp

57 °C (lit.)

bp

57 °C/1013 hPa

form

liquid

form

liquid

form

liquid

form

liquid

Application

Chlorotrimethylsilane has been used to silanize glass surface to make them more hydrophobic.[1] It can be used in combination with hexamethyldisilazane for the protection of alcohols by forming trimethylsilyl ethers via silylation reaction.[2] Also used in Fisher Glycosylation

General description

Chlorotrimethylsilane is a chloro-organosilane compound mainly used for silylation reactions.[3]

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A

supp_hazards

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

-18.4 °F - closed cup

flash_point_c

-28 °C - closed cup

ppe

Faceshields, Gloves, Goggles


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Science of Synthesis: Houben-Weyl Methods of Molecular Transformations, 4, 261-261 (2014)
Thermal analysis of disulfonated poly (arylene ether sulfone) plasticized with poly (ethylene glycol) for membrane formation.
Oh HJ, et al.
Polymer, 55(1), 235-247 (2014)
Use of organosilicon reagents as protective groups in organic synthesis.
Lalonde M & Chan TH.
Synthesis, 1985(09), 817-845 (1985)
Yuma Komata et al.
Chemistry, an Asian journal, 11(22), 3225-3233 (2016-10-21)
Alkoxychlorosilanes are scientifically and industrially important toward preparing silicone and silica as well as preparation of siloxane-based nanomaterials by stepwise reactions of Si-OR (R=alkyl) and Si-Cl groups. Intermolecular exchange of alkoxy and chloro groups between alkoxysilanes and chlorosilanes (functional group
Yongju Kwon et al.
Nature communications, 11(1), 3127-3127 (2020-06-21)
Magic-sized clusters (MSCs) can be isolated as intermediates in quantum dot (QD) synthesis, and they provide pivotal clues in understanding QD growth mechanisms. We report syntheses for two families of heterogeneous-atom-incorporated InP MSCs that have chlorine or zinc atoms. All

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

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  2. Is this product sold in a Sure/seal bottle?

    1 answer
    1. This product is not packaged with a septum or Sure/Seal. Please see the link below to review product 386529, which is package with Sure/Seal closures.
      https://www.sigmaaldrich.com/US/en/product/aldrich/386529

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  3. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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