1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&

Modify Date: 2026-08-02 19:32:57

1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& Structure
1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& structure
Common Name 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&
CAS Number 2003-92-1 Molecular Weight 458.99300
Density 0.885 g/mL at 25ºC(lit.) Boiling Point 121ºC10 mm Hg(lit.)
Molecular Formula C14H42O5Si6 Melting Point N/A
MSDS N/A Flash Point >221 °F

Summary: 1,1,1,3,5,7,7,7-octamethyl-3,5-bis(trimethylsiloxysilyl)tetrasiloxane, also known as 1,1,1,3,5,7,7,7-octamethyl-3,5-bis(trimethylsilyloxy)tetrasiloxane, with the chemical name trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane, CAS number 2003-92-1, molecular formula C14H42O5Si6, molecular weight 458.99300. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 0.885 g/mL at 25ºC(lit.)
Boiling Point 121ºC10 mm Hg(lit.)
Molecular Formula C14H42O5Si6
Molecular Weight 458.99300
Flash Point >221 °F
Exact Mass 458.16500
PSA 46.15000
LogP 5.54640
Vapour Pressure 0.000348mmHg at 25°C
Index of Refraction 1.419
InChIKey PMBZCSBOBLHPSR-UHFFFAOYSA-N
SMILES C[Si](C)(C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

WGK Germany 3
HS Code 2934999090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

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1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& Structure

1,1,1,3,5,7,7,7...

CAS#:2003-92-1

Learn More
Literature: Stober,M.R. et al. Journal of Organic Chemistry, 1965 , vol. 30, p. 1651 - 1652

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1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& Structure

1,1,1,3,5,7,7,7...

CAS#:2003-92-1

Learn More
Literature: Kopylov, V. M.; Agashkov, S. P.; Sunkovich, G. V.; Prikhod'ko, P. L. J. Gen. Chem. USSR (Engl. Transl.), 1991 , vol. 61, # 3.2 p. 762 - 769,692 - 697

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1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& Structure

1,1,1,3,5,7,7,7...

CAS#:2003-92-1

Detail Learn More
Literature: Kopylov, V. M.; Agashkov, S. P.; Sunkovich, G. V.; Prikhod'ko, P. L. J. Gen. Chem. USSR (Engl. Transl.), 1991 , vol. 61, # 3.2 p. 762 - 769,692 - 697

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1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& Structure

1,1,1,3,5,7,7,7...

CAS#:2003-92-1

Learn More
Literature: Mueller et al. Journal fuer Praktische Chemie (Leipzig), 1959 , vol. <4>9, p. 63,67,70

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  5

DownStream  0

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane
3,5-Bis-trimethylsiloxy-octamethyl-tetrasiloxan
1,1,1,3,5,7,7,7-Octamethyl-3,5-bis-trimethylsilyloxy-tetrasiloxan
1,1,1,3,5,7,7,7-Octamethyl-3,5-bis-(trimethylsiloxy)-tetrasiloxan
3,5-Bis-dimethylsilyloxy-1,1,1,3,5,7,7,7-octamethyl-pentasiloxan
MFCD04039928
1,1,1,3,5,7,7,7-octamethyl-3,5-bis[(trimethylsilyl)oxy]tetrasiloxane
1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane

 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM& | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the InChIKey of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: InChIKey of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is PMBZCSBOBLHPSR-UHFFFAOYSA-N.
Q: What is the CAS number of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: CAS number of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is 2003-92-1.
Q: What is the boiling point of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: Boiling point of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is 121ºC10 mm Hg(lit.).
Q: What is the LogP of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: LogP of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is 5.54640.
Q: What is the English name of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: The English name of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane.
Q: What is the molecular weight of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: Molecular weight of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is 458.99300.
Q: What are the upstream materials of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: Related upstream materials(CAS) of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane: 1873-88-7;75-77-4;75-79-6;107-46-0;4617-27-0.
Q: What is the SMILES notation of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: SMILES notation of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is C[Si](C)(C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C.
Q: What is the polar surface area (PSA) of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: Polar surface area (PSA) of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is 46.15000.
Q: What is the molecular formula of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane?
A: Molecular formula of trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane is C14H42O5Si6.

 1,1,1,3,5,7,7,7-OCTAMETHYL-3,5-BIS(TRIM&factory

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