Skip to Content
Merck
All Photos(1)

Documents

444278

Sigma-Aldrich

Decamethylcyclopentasiloxane

97%

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C10H30O5Si5
CAS Number:
541-02-6
Molecular Weight:
370.77
Beilstein:
1800166
EC Number:
208-764-9
MDL number:
MFCD00046966
UNSPSC Code:
12352103
PubChem Substance ID:
24868110
NACRES:
NA.22

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

163.4 °F - closed cup

Flash Point(C)

73 °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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Characterization of ecological risks from environmental releases of decamethylcyclopentasiloxane (D5).
Fairbrother A, et al.
Environmental Toxicology and Chemistry / Setac, 34(12), 2715-2722 (2015)
Qiyan Li et al.
Cell biochemistry and function, 32(2), 183-187 (2013-09-03)
Corneal epithelial barrier dysfunction is harmful to corneal health; the pathogenesis is unclear. This study aims to elucidate the mechanism by which tryptase compromises corneal epithelial barrier function. Human corneal epithelial cell line (HCE cells) was cultured into monolayers using
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)
Ying Chen et al.
Materials (Basel, Switzerland), 15(1) (2022-01-12)
To investigate the toxicity of the low-molecular-weight components (LMWCs) in ophthalmic silicone oils (SilOils) on retinal cell lines. The toxicity of six types of LMWCs were studied and compared with conventional SilOil 1000 cSt. In vitro cytotoxic tests of LMWCs
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service