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Silanes and silicones

Dodecamethylcyclohexasilane

Also known as Cyclohexasilane, dodecamethyl-, Cyclohexasilane, 1,1,2,2,3,3,4,4,5,5,6,6-dodecamethyl-, Dodecamethylhexasilinane

CAS 4098-30-0Formula C12H36Si6Molar mass 348.94 g/molEC 223-860-0
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Dodecamethylcyclohexasilane chemical structure, C12H36Si6, CAS 4098-30-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4098-30-0
Formula
C12H36Si6
Molar mass
348.94 g/mol
EC number
223-860-0
HS code
293190
Category
Silanes and silicones

What is Dodecamethylcyclohexasilane?

Plain description, key identifiers and synonyms

Dodecamethylcyclohexasilane is a chemical substance with the molecular formula C12H36Si6 and a molar mass of 348.94 g/mol. Its CAS registry number is 4098-30-0. The IUPAC name is 1,1,2,2,3,3,4,4,5,5,6,6-dodecamethylhexasilinane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,1,2,2,3,3,4,4,5,5,6,6-dodecamethylhexasilinane
CAS number
4098-30-0 CAS number cross-checked
EC number
223-860-0
Molecular formula
C12H36Si6
UNII
22T5C2K67D
MDL number
MFCD00053564
InChIKey
RTCLHEHPUHREBC-UHFFFAOYSA-N
InChI
InChI=1S/C12H36Si6/c1-13(2)14(3,4)16(7,8)18(11,12)17(9,10)15(13,5)6/h1-12H3
SMILES (canonical and isomeric)
C[Si]1([Si]([Si]([Si]([Si]([Si]1(C)C)(C)C)(C)C)(C)C)(C)C)C

Synonyms

  • Cyclohexasilane, dodecamethyl-
  • Cyclohexasilane, 1,1,2,2,3,3,4,4,5,5,6,6-dodecamethyl-
  • Dodecamethylhexasilinane
  • 1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethylhexasilinane
  • 1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethylcyclohexasilane
  • C12H36Si6
  • Dodecamethylcyclohexasilylene
  • Dodecamethylcyclohexasilane, >=97% (GC)
  • Silicon in MIBK, 1,000 mg/L, 4 x 25 ml
  • 1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethylhexasilinane #
  • 1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethyl-1,2,3,4,5,6-hexasilinane

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
348.94 g/molcalc.
Exact mass
348.1433 Dacalc.
LogP (octanol/water)
4.72calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
18calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, [SiH2]1[SiH2][SiH2][SiH2][SiH2][SiH2]1

[SiH2]1[SiH2][SiH2][SiH2][SiH2][SiH2]1

1 ring, 6 atoms.

9 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Dodecamethylcyclohexasilane suppliers

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Dodecamethylcyclohexasilane price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dodecamethylcyclohexasilane is traded under.

HS 2931.90Indicative HS code

Organo-inorganic compounds, other than tetramethyl lead, tetraethyl lead, tributyltin compounds…

World exports in 2024
$3.97B
+5.3% vs 2023, imports $3.93B
2019 to 2024
Top exporters
  1. China28.3%
  2. United States15.6%
  3. Germany15.1%
Top importers
  1. United States14.6%
  2. China13.0%
  3. South Korea8.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Dodecamethylcyclohexasilane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dodecamethylcyclohexasilane, based on the data on this page

What is Dodecamethylcyclohexasilane?

Dodecamethylcyclohexasilane is a chemical substance with the molecular formula C12H36Si6 and a molar mass of 348.94 g/mol. Its CAS registry number is 4098-30-0. The IUPAC name is 1,1,2,2,3,3,4,4,5,5,6,6-dodecamethylhexasilinane.

What is the CAS number of Dodecamethylcyclohexasilane?

The CAS registry number of Dodecamethylcyclohexasilane is 4098-30-0.

What is the molecular formula and weight of Dodecamethylcyclohexasilane?

The molecular formula of Dodecamethylcyclohexasilane is C12H36Si6 and its molar mass is 348.94 g/mol.

Is Dodecamethylcyclohexasilane hazardous?

No GHS hazard classification for Dodecamethylcyclohexasilane is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Dodecamethylcyclohexasilane?

Dodecamethylcyclohexasilane is usually classified under HS code 293190 (X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dodecamethylcyclohexasilane?

Post a free request on CompoundList and suppliers of Dodecamethylcyclohexasilane will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Dodecamethylcyclohexasilane?

Suppliers quote Dodecamethylcyclohexasilane on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Dodecamethylcyclohexasilane

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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