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42940

Sigma-Aldrich

Dimethoxydiphenylsilane

≥95.0% (GC)

Synonym(s):

Diphenyldimethoxysilane

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About This Item

Empirical Formula (Hill Notation):
C14H16O2Si
CAS Number:
6843-66-9
Molecular Weight:
244.36
Beilstein:
2940458
EC Number:
229-929-1
MDL number:
MFCD00025690
UNSPSC Code:
12352103
PubChem Substance ID:
57650136
NACRES:
NA.22

Assay

≥95.0% (GC)

form

liquid

refractive index

n20/D 1.5450 (lit.)

bp

161 °C/15 mmHg (lit.)

density

1.08 g/mL at 20 °C (lit.)

SMILES string

CO[Si](OC)(c1ccccc1)c2ccccc2

InChI

1S/C14H16O2Si/c1-15-17(16-2,13-9-5-3-6-10-13)14-11-7-4-8-12-14/h3-12H,1-2H3

InChI key

AHUXYBVKTIBBJW-UHFFFAOYSA-N

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General description

Dimethoxydiphenylsilane (DMDPS, DDS) is an acetylating reagent.{57}

Application

DMDPS may be useful as a precursor to prepare silica.{58} It may be used in lithium ion batteries as an electrolyte additive. It prevents the batteries from overcharging.{59}

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315

Hazard Classifications

Skin Irrit. 2

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

249.8 °F - closed cup

Flash Point(C)

121 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Use of dimethoxydiphenylsilane, NN-dimethylformamide, and toluene-p-sulphonic acid as a novel acetalating reagent.
Jenner MR, et al.
Journal of the Chemical Society. Chemical Communications, 2, 50-51 (1980)
Effect of physically adsorbed water molecules on the H 2-selective performance of a silica membrane prepared with dimethoxydiphenylsilane and its regeneration.
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