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
176206
Poly(methylhydrosiloxane)
average Mn 1,700-3,200
Synonym(s):
Methylhydrogensiloxane polymer, PMHS
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About This Item
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form
liquid
Quality Level
mol wt
average Mn 1,700-3,200
greener alternative product characteristics
Catalysis
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sustainability
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refractive index
n20/D 1.398
viscosity
12-45 cSt
density
1.006 g/mL at 25 °C (lit.)
greener alternative category
, Aligned
SMILES string
[Si](C)(C)(C)C.[Si](O)(C)(C)C.[SiH](O)(C)C
InChI
1S/C4H12Si.C3H10OSi.C2H8OSi/c2*1-5(2,3)4;1-4(2)3/h1-4H3;4H,1-3H3;3-4H,1-2H3
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General description
Harnessing the reactivity of poly(methylhydrosiloxane) for the reduction and cyclization of biomass to high-value products
Application
Synthesis of substituted amines and isoindolinones: catalytic reductive amination using abundantly available AlCl3/PMHS
Amine Synthesis through Mild Catalytic Hydrosilylation of Imines using Polymethylhydroxysiloxane and [RuCl2(arene)]2 Catalysts
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
399.2 °F - closed cup
Flash Point(C)
204 °C - closed cup
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We offer PDMS surface modification kit which allows for durable hydrophilization of various polydimethylsiloxane (PDMS) surfaces.
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How can I determine the shelf life / expiration / retest date of this product?
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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/449/386/product-dating-information-mk.pdfHelpful?
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