- IUPAC name
- 5-heptyloxolan-2-one
- Molecular formula
- C11H20O2
- Molecular weight
- 184.27 g/mol
- Exact mass
- 184.146329876 Da
- XLogP3
- 3.3
- Topological polar surface area
- 26.3 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 2
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
Undecan-4-olide2(3H)-Furanone, 5-heptyldihydro-PersicolPeach aldehydePeach lactone5-Heptyldihydro-2(3H)-furanone1,4-Undecanolidegamma-Undecanolactone
16 more reported names
Aldehyde C-14 peach1,4-Hendecanolide4-Hydroxyundecanoic acid lactonegamma-Undecanolide.gamma.-UndecalactoneFEMA No. 3091gamma-Undekalaktongamma-Heptyl-gamma-butyrolactoneQB1T0AG2YLgamma-n-Heptylbutyrolactonegamma-Undekalakton [Czech]gamma-Undecalactone (natural)CCRIS 1425NSC 406421gammaundecalactone5-Heptyl-dihydrofuran-2(3H)-one
External database identifiers
- ChEBI:CHEBI:89362
- ChEMBL:CHEMBL195827
- EPA DTXSID:DTXSID4034287
- PubMed:21823126
- PubMed:19848247
- PubMed:17995626
- PubMed:17530862
- PubMed:16946554
- PubMed:16525876
- PubMed:15277045
- PubMed:12174611
Evidence from additional scientific databases
EMBL-EBI ChEBI
Exact identifier matchCHEBI:10580
γ-undecanolactone
- Formula
- C11H20O2
- Average mass
- 184.279 g/mol
- Monoisotopic mass
- 184.14633 Da
- Formal charge
- 0
- butan-4-olide — is a (CHEBI:22950)
- undecanoic acid — has functional parent (CHEBI:32368)
- undecane — has parent hydride (CHEBI:46342)
- butan-4-olide — is a (CHEBI:22950)
Additional curated names
2(3H)-Furanone, 5-heptyldihydro-gamma-Undecalactone
Cross-references from this source
Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2014-07-28. Retrieved: 2026-08-31. Open source record
NIH PubChem PUG-View
Exact identifier match7714
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 297 °C Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Density: 0.942-0.945 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Physical Description: Dry Powder; Liquid; Liquid; CBI; Other Solid Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Colorless to yellow liquid with a strong fruity odor like peaches; [Reference #1] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Physical Description: colourless to slightly yellow liquid with a fruity, peach-like odour Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Refractive Index: 1.448-1.453 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: soluble in alcohol, most fixed oils and propylene glycol; insoluble in glycerol and in water Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: 1 ml in 5 ml 60% alcohol (in ethanol) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Note: This chemical does not meet GHS hazard criteria for 69.7% (1536 of 2205) of all reports. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H411 (10.3%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]; H412 (19.3%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P273, P391, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 2205 reports by companies from 19 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 1536 of 2205 reports by companies.; There are 18 notifications provided by 669 of 2205 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]; H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
- Precautionary Statement Codes: P273, P391, and P501 (click each P-code to see the statement) Source: NITE-CMC
- GHS Hazard Statements: Not Classified Source: NITE-CMC
- Consumer Uses: Not Known or Reasonably Ascertainable; Fragrance; Other Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Fragrance; Other; Flavoring and nutrient Source: EPA Chemical Data Reporting (CDR)
- Sources/Uses: Used as repellent for cats and dogs, as insecticide/repellant for house flies, cockroaches, ants, biting flies, and mosquitoes, and as a mosquito larvicide for residential and large scale public health applications; [Reference #1] Used as flavoring agent or adjuvant; [FDA] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| EMBL-EBI ChEBI | Exact match | 2026-08-31 |
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.