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Aliphatic and alicyclic building blocks

Empenthrin

Also known as 1-Ethynyl-2-methyl-2-pentenyl chrysanthemate, 1-Ethynyl-2-methylpent-2-enyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate, Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, 1-ethynyl-2-methyl-2-pentenyl ester

CAS 54406-48-3Formula C18H26O2Molar mass 274.40 g/molEC 259-154-4
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 3 suppliers listed
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Empenthrin chemical structure, C18H26O2, CAS 54406-48-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
54406-48-3
Formula
C18H26O2
Molar mass
274.40 g/mol
EC number
259-154-4
HS code
291620
Category
Aliphatic and alicyclic building blocks

What is Empenthrin?

Plain description, key identifiers and synonyms

Empenthrin is a chemical substance with the molecular formula C18H26O2 and a molar mass of 274.40 g/mol. Its CAS registry number is 54406-48-3. The IUPAC name is 4-methylhept-4-en-1-yn-3-yl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-methylhept-4-en-1-yn-3-yl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate
CAS number
54406-48-3 CAS number cross-checked
EC number
259-154-4
Molecular formula
C18H26O2
InChIKey
YUGWDVYLFSETPE-UHFFFAOYSA-N
InChI
InChI=1S/C18H26O2/c1-8-10-13(5)15(9-2)20-17(19)16-14(11-12(3)4)18(16,6)7/h2,10-11,14-16H,8H2,1,3-7H3
SMILES (canonical and isomeric)
CCC=C(C)C(C#C)OC(=O)C1C(C1(C)C)C=C(C)C

Synonyms

  • 1-Ethynyl-2-methyl-2-pentenyl chrysanthemate
  • 1-Ethynyl-2-methylpent-2-enyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
  • Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, 1-ethynyl-2-methyl-2-pentenyl ester
  • 4-Methylhept-4-en-1-yn-3-yl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate

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
274.40 g/molcalc.
Exact mass
274.1933 Dacalc.
LogP (octanol/water)
4.13calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
5calc.
Heavy atoms
20calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.61calc.
Formal charge
0calc.
Stereocentres
3calc.
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, C1CC1

C1CC1

1 ring, 3 atoms, the Cyclopropane ring system.

17,446 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P391Collect spillage.
  • 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

Empenthrin suppliers

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All 3 suppliers

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Where suppliers are based

3 suppliers in 1 country

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Empenthrin price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

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 Empenthrin is traded under.

HS 2916.20Indicative HS code

Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…

World exports in 2024
$489M
−6.1% vs 2023, imports $608M
2019 to 2024
Top exporters
  1. China45.5%
  2. India * partner reported18.6%
  3. Japan11.2%
Top importers
  1. Brazil20.3%
  2. United States15.7%
  3. India * partner reported12.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Empenthrin?

Empenthrin is a chemical substance with the molecular formula C18H26O2 and a molar mass of 274.40 g/mol. Its CAS registry number is 54406-48-3. The IUPAC name is 4-methylhept-4-en-1-yn-3-yl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate.

What is the CAS number of Empenthrin?

The CAS registry number of Empenthrin is 54406-48-3.

What is the molecular formula and weight of Empenthrin?

The molecular formula of Empenthrin is C18H26O2 and its molar mass is 274.40 g/mol.

What is Empenthrin used for?

Known uses and roles of Empenthrin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Empenthrin hazardous?

Empenthrin carries the GHS signal word "Warning". Main hazards: harmful if swallowed, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Empenthrin?

Empenthrin is usually classified under HS code 291620 (Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Empenthrin?

CompoundList lists 3 suppliers of Empenthrin in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Empenthrin?

Suppliers quote Empenthrin 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

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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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