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Silanes and silicones

Tributylsilane

Also known as Silane, tributyl-, Silane, tributyl-,

CAS 998-41-4Formula C12H27SiMolar mass 199.43 g/molEC 627-008-2
GHS signal word: Warning. Pictograms: Harmful or irritant 1 supplier listed
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Tributylsilane chemical structure, C12H27Si, CAS 998-41-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
998-41-4
Formula
C12H27Si
Molar mass
199.43 g/mol
EC number
627-008-2
HS code
293190
Category
Silanes and silicones

What is Tributylsilane?

Plain description, key identifiers and synonyms

Tributylsilane is a chemical substance with the molecular formula C12H27Si and a molar mass of 199.43 g/mol. Its CAS registry number is 998-41-4.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
998-41-4 CAS number cross-checked
EC number
627-008-2
Molecular formula
C12H27Si
InChIKey
ISEIIPDWJVGTQS-UHFFFAOYSA-N
InChI
InChI=1S/C12H27Si/c1-4-7-10-13(11-8-5-2)12-9-6-3/h4-12H2,1-3H3
SMILES (canonical and isomeric)
CCCC[Si](CCCC)CCCC

Synonyms

  • Silane, tributyl-
  • Silane, tributyl-,

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
199.43 g/molcalc.
Exact mass
199.1882 Dacalc.
LogP (octanol/water)
4.88calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
9calc.
Heavy atoms
13calc.
Rings
0calc.
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.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

Tributylsilane suppliers

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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

1 supplier in 1 country

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Tributylsilane price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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

Frequently asked questions

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

What is Tributylsilane?

Tributylsilane is a chemical substance with the molecular formula C12H27Si and a molar mass of 199.43 g/mol. Its CAS registry number is 998-41-4.

What is the CAS number of Tributylsilane?

The CAS registry number of Tributylsilane is 998-41-4.

What is the molecular formula and weight of Tributylsilane?

The molecular formula of Tributylsilane is C12H27Si and its molar mass is 199.43 g/mol.

Is Tributylsilane hazardous?

Tributylsilane carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Tributylsilane?

Tributylsilane 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 Tributylsilane?

CompoundList lists 1 supplier of Tributylsilane in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Tributylsilane?

Suppliers quote Tributylsilane 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 Tributylsilane

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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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