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Silanes and silicones

Cyclohexyltrichlorosilane

Also known as Trichloro(cyclohexyl)silane, Trichlorocyclohexylsilane, Silane, trichlorocyclohexyl-

CAS 98-12-4Formula C6H11Cl3SiMolar mass 217.60 g/molEC 202-639-2
GHS signal word: Danger. Pictograms: Corrosive
Get quotes Safety data
Cyclohexyltrichlorosilane chemical structure, C6H11Cl3Si, CAS 98-12-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless to pale-yellow liquid
Boiling point
206 °C
Density
1.226 at 25 °C/25 °C
Flash point
91 °C
HS code
293190
Category
Silanes and silicones
UN number
UN 1763
Illustrative photo, clear liquid in a volumetric flask on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Cyclohexyltrichlorosilane?

Plain description, key identifiers and synonyms

Cyclohexyltrichlorosilane appears as a colorless to pale yellow liquid with a pungent odor. Corrosive to metals and tissue.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trichloro(cyclohexyl)silane
CAS number
98-12-4 CAS number cross-checked
EC number
202-639-2
Molecular formula
C6H11Cl3Si
UNII
3J37567BD2
MDL number
MFCD00021280
InChIKey
SIPHWXREAZVVNS-UHFFFAOYSA-N
InChI
InChI=1S/C6H11Cl3Si/c7-10(8,9)6-4-2-1-3-5-6/h6H,1-5H2
SMILES (canonical and isomeric)
C1CCC(CC1)[Si](Cl)(Cl)Cl

Synonyms

  • Trichloro(cyclohexyl)silane
  • Trichlorocyclohexylsilane
  • Silane, trichlorocyclohexyl-
  • Cyclohexane, (trichlorosilyl)-
  • cyclohexyl trichlorosilane
  • Cyclohexane, 1-(trichlorosilyl)-
  • Trichlorocyclohexyl silane
  • 1-(Trichlorosilyl) cyclohexane
  • (Trichlorosilyl)cyclohexane
  • Silane, cyclohexyltrichloro-
  • Trichlorocyclohexylsilane, 98%
  • UN 1763
  • CyclohexyltrichlorosilaneTrichlorocyclohexysilane
  • Cyclohexyltrichlorosilane [UN1763] [Corrosive]
  • Trichlorocyclohexylsilane, (Trichlorosilyl)cyclohexane, Silane, trichlorocyclohexyl-

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

Appearance
Colorless to pale-yellow liquidexp.
Boiling point
206 °Cexp.
Density
1.226 at 25 °C/25 °Cexp.
Flash point
91 °Cexp.

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
217.60 g/molcalc.
Exact mass
215.9696 Dacalc.
LogP (octanol/water)
3.98calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
10calc.
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, C1CCCCC1

C1CCCCC1

1 ring, 6 atoms, the Cyclohexane ring system.

24,737 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
231NFPA 704 rating

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
Precautionary statements (14)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1763
Transport hazard class
8
Packing group
II

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

Full safety data and first aid

Cyclohexyltrichlorosilane suppliers

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Cyclohexyltrichlorosilane 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

Intermediate for silicones.

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 Cyclohexyltrichlorosilane 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 Cyclohexyltrichlorosilane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Cyclohexyltrichlorosilane?

Cyclohexyltrichlorosilane appears as a colorless to pale yellow liquid with a pungent odor. Corrosive to metals and tissue.

What is the CAS number of Cyclohexyltrichlorosilane?

The CAS registry number of Cyclohexyltrichlorosilane is 98-12-4.

What is the molecular formula and weight of Cyclohexyltrichlorosilane?

The molecular formula of Cyclohexyltrichlorosilane is C6H11Cl3Si and its molar mass is 217.60 g/mol.

What is Cyclohexyltrichlorosilane used for?

Intermediate for silicones.

Is Cyclohexyltrichlorosilane hazardous?

Cyclohexyltrichlorosilane carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cyclohexyltrichlorosilane?

Cyclohexyltrichlorosilane 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 Cyclohexyltrichlorosilane?

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What is the price of Cyclohexyltrichlorosilane?

Suppliers quote Cyclohexyltrichlorosilane 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 Cyclohexyltrichlorosilane

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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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