ContaminantDB: 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2016-05-22 04:53:06 UTC

Update Date

2026-04-16 20:45:56 UTC

Accession Number

CHEM018044

Identification

Common Name

1,1,3,3,5,5,7,7-Octamethyltetrasiloxane

Class

Small Molecule

Description

Not Available

Contaminant Sources

ToxCast & Tox21 Chemicals

Contaminant Type

Not Available

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Not Available

Chemical Formula

C₈H₂₆O₃Si₄

Average Molecular Mass

282.633 g/mol

Monoisotopic Mass

282.096 g/mol

CAS Registry Number

1000-05-1

IUPAC Name

2,4,4,6,6,8-hexamethyl-3,5,7-trioxa-2,4,6,8-tetrasilanonane

Traditional Name

2,4,4,6,6,8-hexamethyl-3,5,7-trioxa-2,4,6,8-tetrasilanonane

SMILES

C[SiH](C)O[Si](C)(C)O[Si](C)(C)O[SiH](C)C

InChI Identifier

InChI=1S/C8H26O3Si4/c1-12(2)9-14(5,6)11-15(7,8)10-13(3)4/h12-13H,1-8H3

InChI Key

MMAKNNYIZYDWTD-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as siloxanes. These are saturated silicon-oxygen hydrides with unbranched or branched chains of alternating silicon and oxygen atoms (each silicon atom is separated from its nearest silicon neighbours by single oxygen atoms). The general structure of unbranched siloxanes is H3Si[OSiH2]nOSiH3. H3Si[OSiH2]nOSiH[OSiH2OSiH3]2 is an example of a branched siloxane. By extension hydrocarbyl derivatives are commonly included.

Kingdom

Organic compounds

Super Class

Organometallic compounds

Class

Organometalloid compounds

Sub Class

Organosilicon compounds

Direct Parent

Siloxanes

Alternative Parents

Substituents

Siloxane
Organoheterosilane
Organic metalloid salt
Organic oxygen compound
Hydrocarbon derivative
Organic salt
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

Not Available

Biological Properties

Status

Detected and Not Quantified

Origin

Not Available

Cellular Locations

Not Available

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Not Available

Appearance

Not Available

Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	0.19 g/L	ALOGPS
logP	3.39	ALOGPS
logP	0.2	ChemAxon
logS	-3.2	ALOGPS
pKa (Strongest Basic)	-3.4	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	3	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	27.69 Å²	ChemAxon
Rotatable Bond Count	6	ChemAxon
Refractivity	52.55 m³·mol⁻¹	ChemAxon
Polarizability	28.06 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	Yes	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-001i-0090000000-8910776e8ddc719e5505	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0560-7960000000-74ddf8745c52fd15825d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-056r-9430000000-47f3b019037c5a374d4c	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-00lr-1190000000-b33a6e131bf344941589	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-053r-6940000000-ab075a2873f7c521e5c2	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0ac0-9630000000-76eeedff89d1aa85ea14	Spectrum

Toxicity Profile

Route of Exposure

Not Available

Mechanism of Toxicity

Not Available

Metabolism

Not Available

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

Not Available

Uses/Sources

Not Available

Minimum Risk Level

Not Available

Health Effects

Not Available

Symptoms

Not Available

Treatment

Not Available

Concentrations

Not Available

External Links

DrugBank ID

Not Available

HMDB ID

Not Available

FooDB ID

Not Available

Phenol Explorer ID

Not Available

KNApSAcK ID

Not Available

BiGG ID

Not Available

BioCyc ID

Not Available

METLIN ID

Not Available

PDB ID

Not Available

Wikipedia Link

Not Available

Chemspider ID

Not Available

ChEBI ID

Not Available

PubChem Compound ID

70465

Kegg Compound ID

Not Available

YMDB ID

Not Available

ECMDB ID

Not Available

References

Synthesis Reference

Not Available

MSDS

Not Available

General References

Not Available

1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CHEM018044)

Structure for CHEM018044: 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane