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444278

Decamethylcyclopentasiloxane

Name: Decamethylcyclopentasiloxane
Brand: ALDRICH

97%

Synonym(s):

2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane, Cyclic dimethylsiloxane pentamer, Cyclo-decamethylpentasiloxane, Cyclomethicone pentamer 245, Decamethylpentacyclosiloxane

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About This Item

Empirical Formula (Hill Notation):

C₁₀H₃₀O₅Si₅

CAS Number:

541-02-6

Molecular Weight:

370.77

UNSPSC Code:

12352103

NACRES:

NA.22

PubChem Substance ID:

24868110

EC Number:

208-764-9

Beilstein/REAXYS Number:

1800166

MDL number:

MFCD00046966

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Properties

Quality Level

100

assay

97%

form

liquid

refractive index

n20/D 1.396 (lit.)

bp

90 °C/10 mmHg (lit.)

density

0.958 g/mL at 25 °C (lit.)

SMILES string

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

InChI

1S/C10H30O5Si5/c1-16(2)11-17(3,4)13-19(7,8)15-20(9,10)14-18(5,6)12-16/h1-10H3

InChI key

XMSXQFUHVRWGNA-UHFFFAOYSA-N

Description

General description

Decamethylcyclopentasiloxane (D₅) is used in personal care products including skin creams, cosmetics, shampoos, deodorants and conditioners. D₅ is also used in various applications such as industrial cleaning fluids and dry cleaning solvents.

Application

Decamethylcyclopentasiloxane (D₅) can be used as:

A greener solvent in synthetic chemistry applications.
A monomeric unit for polymerization by various base catalysts to obtain polysiloxane polymer.

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Storage Class

10 - Combustible liquids

flash_point_f

163.4 °F - closed cup

flash_point_c

73 °C - closed cup

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

signalword

Danger

hcodes

EUH441

pcodes

P201 - P202 - P273 - P391 - P501

Hazard Classifications

PBT - vPvB

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Ring-opening polymerization of decamethylcyclopentasiloxane initiated by a superbase: Kinetics and rheology.

Pibre G, et al.

Polymer, 49(1), 234-240 (2008)

The potential of methylsiloxanes as solvents for synthetic chemistry applications.

Ab Rani M, et al.

Green Chemistry, 16(3), 1282-1296 (2014)

Deoligomerization of cyclooligosiloxanes with dimethyl carbonate over solid-base catalysts.

Okamoto M, et al.

Catalysis Letters, 88(3-4), 115-118 (2003)

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Global Trade Item Number

SKU	GTIN
444278-250ML	04061832283197
444278-50ML	04061832283203