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Organometallic compounds

Trimethylethyllead

Also known as Me3EtPb, Ethyltrimethyllead, Ethyltrimethylplumbane

CAS 1762-26-1Formula C5H14PbMolar mass 281.37 g/molEC 217-169-3
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Trimethylethyllead chemical structure, C5H14Pb, CAS 1762-26-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Boiling point
27 °C
Density
1.88 g/cm³ at 20 °C
HS code
293110
Category
Organometallic compounds
Illustrative photo, 200 litre steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Trimethylethyllead?

Plain description, key identifiers and synonyms

Trimethylethyllead is a chemical substance with the molecular formula C5H14Pb and a molar mass of 281.37 g/mol. Its CAS registry number is 1762-26-1. The IUPAC name is ethyl(trimethyl)plumbane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl(trimethyl)plumbane
CAS number
1762-26-1 CAS number cross-checked
EC number
217-169-3
Molecular formula
C5H14Pb
UNII
9SQ29E5D75
InChIKey
KHQJREYATBQBHY-UHFFFAOYSA-N
InChI
InChI=1S/C2H5.3CH3.Pb/c1-2;;;;/h1H2,2H3;3*1H3;
SMILES (canonical and isomeric)
CC[Pb](C)(C)C

Synonyms

  • Me3EtPb
  • Ethyltrimethyllead
  • Ethyltrimethylplumbane
  • Lead, ethyltrimethyl-
  • Plumbane, ethyltrimethyl-
  • Ethyltrimethyl lead
  • Ethyltri(methyl)plumbane
  • Ethyl(trimethyl)plumbane #

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 liquidexp.
Boiling point
27 °Cexp.
Density
1.88 g/cm³ at 20 °Cexp.
Vapour pressure
7.30 mm Hg at 25 °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
281.37 g/molcalc.
Exact mass
282.0862 Dacalc.
LogP (octanol/water)
2.34calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
6calc.
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

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.

Trimethylethyllead suppliers

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Trimethylethyllead 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

Gasoline additive.

Anti-knock agents in aviation fuels.

How it is made

Component of reaction product mixtures of tetraalkyl lead compounds produced by catalytic equilibration between varying amounts of tetraethyl & tetramethyl leads

Mixture of molten lead and sodium, after solidification, is flaked and reacted with alkyl chloride at 75 °C and 400 kPa using acetone as a catalyst. Products are collected and purified via steam distillation.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive 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 Trimethylethyllead is traded under.

HS 2931.10Indicative HS code

Tetramethyl lead and tetraethyl lead

World exports in 2024
$22M
+488% vs 2023, imports $19.5M
2019 to 2024
Top exporters
  1. Netherlands82.8%
  2. United Kingdom4.8%
  3. United States4.2%
Top importers
  1. France * partner reported29.7%
  2. Thailand19.5%
  3. Netherlands12.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Trimethylethyllead?

Trimethylethyllead is a chemical substance with the molecular formula C5H14Pb and a molar mass of 281.37 g/mol. Its CAS registry number is 1762-26-1. The IUPAC name is ethyl(trimethyl)plumbane.

What is the CAS number of Trimethylethyllead?

The CAS registry number of Trimethylethyllead is 1762-26-1.

What is the molecular formula and weight of Trimethylethyllead?

The molecular formula of Trimethylethyllead is C5H14Pb and its molar mass is 281.37 g/mol.

What is Trimethylethyllead used for?

Gasoline additive. Anti-knock agents in aviation fuels.

Is Trimethylethyllead hazardous?

No GHS hazard classification for Trimethylethyllead 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 Trimethylethyllead?

Trimethylethyllead is usually classified under HS code 293110 (Tetramethyl lead and tetraethyl lead). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Trimethylethyllead?

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

What is the price of Trimethylethyllead?

Suppliers quote Trimethylethyllead 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 Trimethylethyllead

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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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