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Silanes and silicones

Phenyltributylsilane

Also known as phenyl-tributyl-silane, tributyl(phenyl)silane

CAS 18510-29-7Formula C18H32SiMolar mass 276.54 g/molEC 660-269-0
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Phenyltributylsilane chemical structure, C18H32Si, CAS 18510-29-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
18510-29-7
Formula
C18H32Si
Molar mass
276.54 g/mol
EC number
660-269-0
HS code
293190
Category
Silanes and silicones

What is Phenyltributylsilane?

Plain description, key identifiers and synonyms

Phenyltributylsilane is a chemical substance with the molecular formula C18H32Si and a molar mass of 276.54 g/mol. Its CAS registry number is 18510-29-7. The IUPAC name is tributyl(phenyl)silane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
tributyl(phenyl)silane
CAS number
18510-29-7 CAS number cross-checked
EC number
660-269-0
Molecular formula
C18H32Si
InChIKey
NPUNKNNUCDLBRS-UHFFFAOYSA-N
InChI
InChI=1S/C18H32Si/c1-4-7-15-19(16-8-5-2,17-9-6-3)18-13-11-10-12-14-18/h10-14H,4-9,15-17H2,1-3H3
SMILES (canonical and isomeric)
CCCC[Si](CCCC)(CCCC)C1=CC=CC=C1

Synonyms

  • phenyl-tributyl-silane
  • tributyl(phenyl)silane

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
276.54 g/molcalc.
Exact mass
276.2273 Dacalc.
LogP (octanol/water)
5.74calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
10calc.
Heavy atoms
19calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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 Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms

Hazard statements

  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (2)
  • P273Avoid release to the environment.
  • P501Dispose of contents and container in accordance with local regulations.

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

Phenyltributylsilane suppliers

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Phenyltributylsilane 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

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Phenyltributylsilane 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 Phenyltributylsilane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Phenyltributylsilane?

Phenyltributylsilane is a chemical substance with the molecular formula C18H32Si and a molar mass of 276.54 g/mol. Its CAS registry number is 18510-29-7. The IUPAC name is tributyl(phenyl)silane.

What is the CAS number of Phenyltributylsilane?

The CAS registry number of Phenyltributylsilane is 18510-29-7.

What is the molecular formula and weight of Phenyltributylsilane?

The molecular formula of Phenyltributylsilane is C18H32Si and its molar mass is 276.54 g/mol.

Is Phenyltributylsilane hazardous?

Phenyltributylsilane has a GHS hazard classification. Main hazards: may cause long lasting harmful effects to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Phenyltributylsilane?

Phenyltributylsilane 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 Phenyltributylsilane?

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What is the price of Phenyltributylsilane?

Suppliers quote Phenyltributylsilane 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 Phenyltributylsilane

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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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