CAS 9004-73-3 Polymethylhydrosiloxane - Materials / Alfa Chemistry

NAVIGATION

Polymethylhydrosiloxane

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Catalog Number

ACM9004733

CAS Number

9004-73-3

Product Name

Polymethylhydrosiloxane

Category

Self Assembly and Contact Printing Materials

Synonyms

METHYLHYDROGENSILOXAN POLYMER;PMHS;POLYMETHYLHYDROSILOXANES;POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED;Methyl hydrogen polysiloxane~PMHS;METHYLPOLYSILOXANEOIL;Poly[oxy(methylsilylene)];Polymethylhydrosiloxane

Molecular Weight

115.23g/mol

Molecular Formula

C5H11OSi

Canonical SMILES

C[Si]1CCCCO1

InChI

InChI=1S/C5H11OSi/c1-7-5-3-2-4-6-7/h2-5H2,1H3

InChI Key

TXYXVOOPRILIHR-UHFFFAOYSA-N

Melting Point

>177°C(lit.)

Flash Point

121°C

Density

0.995

Appearance

Clear colorless viscous liquid

Application

Polymethylhydrosiloxane (PMHS) serves as a versatile and valuable reducing agent, favored for its handling ease, cost-effectiveness, non-toxic nature, and mild reaction profile. It is particularly beneficial as an alternative to more hazardous or costly silanes or siloxanes and as a stoichiometric reductant in catalytic organotin-mediated processes. PMHS can be cross-linked using metal catalysts at low temperatures to create waterproof membranes, making it ideal for waterproofing textiles, glass, pottery, paper, leather, metal, cement, and marble. In the realm of chemical synthesis, PMHS finds applications in reducing esters to alcohols, with titanocene dichloride and n-BuLi or EtMgBr as catalysts, and offers a safer option compared to triethoxysilane for reducing phosphine oxides to phosphines, catalyzed by Ti(O-i-Pr)4. Additionally, it supports greener amine synthesis through reductive amination, offering a sustainable alternative to borohydrides, and has been employed in studies for the conjugate reduction of α, β-unsaturated carbonyl and carboxyl compounds.

Assay

0.99

Complexity

Covalently-Bonded Unit Count

EC Number

618-393-8

Exact Mass

115.057917g/mol

Formal Charge

Heavy Atom Count

Monoisotopic Mass

115.057917g/mol