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Merck
CN

43216

Dodecamethylcyclohexasiloxane

analytical standard

Synonym(s):

2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethylcyclohexasiloxane

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About This Item

Empirical Formula (Hill Notation):
C12H36O6Si6
CAS Number:
540-97-6
Molecular Weight:
444.92
UNSPSC Code:
77101502
PubChem Substance ID:
329756321
EC Number:
208-762-8
NACRES:
NA.24
MDL number:
MFCD00144215

Key Documents

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Product Name

Dodecamethylcyclohexasiloxane, analytical standard

SMILES string

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

InChI

1S/C12H36O6Si6/c1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h1-12H3

InChI key

IUMSDRXLFWAGNT-UHFFFAOYSA-N

grade

analytical standard

assay

≥97.0% (GC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

format

neat

Quality Level

100

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Application

Dodecamethylcyclohexasiloxane may be used as an analytical reference standard for the quantification of the analyte in the following:
  • Silicone emulsions using gas chromatography with flame ionization detection (GC-FID).
  • Biota and wastewater samples using gas chromatography coupled to mass spectrometry (GC-MS).

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

Dodecamethylcyclohexasiloxane belonging to the class of cyclic volatile methylsiloxanes is identified as a potent environmental contaminant, most prominently found in biota, biosolid samples, soil, sediment samples, wastewaters, etc. These compounds are used as fragrance carriers or solvents in household products, personal care products, cleaning agents and as precursors in the manufacture of silicone polymers.
This compound is listed in the SVHC (Substances of very high concern) candidate list of ECHA (European Chemicals Agency)

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

195.8 °F - closed cup

flash_point_c

91 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL2248
BCCG8045
BCCG6833
BCCC0280
BCBV5993

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A practical gas chromatography flame ionization detection method for the determination of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane in silicone emulsions
Kierkegaard A, et al.
Analytical Chemistry, 82(22), 9573-9578 (2010)
Determination of cyclic and linear siloxanes in wastewater samples by ultrasound-assisted dispersive liquid?liquid microextraction followed by gas chromatography?mass spectrometry
Cortada C, et al.
Talanta, 120, 191-197 (2014)
A practical gas chromatography flame ionization detection method for the determination of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane in silicone emulsions
Brothers MH, et al.
Journal of Chromatography A, 144, 116-125 (2016)

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