Agent Name

gamma-Undecalactone

Alternative Name

2(3H)-Furanone, 5-heptyldihydro-

CAS Number

104-67-6

Formula

C11-H20-O2

Major Category

Other Classes

Synonyms

Gamma-undecalactone; 1,4-Hendecanolide; 1,4-Undecanolide; 4-Hydroxyundecanoic acid lactone; 4-Undecanolide; 5-Heptyldihydro-2(3H)-furanone; Aldehyde C-14 peach; Peach aldehyde; Peach lactone; Persicol; delta-Undecalactone; gamma-Heptyl-gamma-butyrolactone; gamma-Undecalactone (natural); gamma-Undecanolactone; gamma-Undecanolide; gamma-Undekalakton [Czech]; gamma-n-Heptylbutyrolactone; Undecan-4-olide; Undecanoic acid, 4-hydroxy-, gamma-lactone; [ChemIDplus]

Category

Lactones

Description

Colorless to yellow liquid with a strong fruity odor like peaches; [Reference #1]

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]

Comments

A moderate to severe skin irritant; Causes somnolence in oral lethal-dose studies of rats; [RTECS] No significant adverse effects observed in a 90-day or 2-year feeding studies of rats; Formulations contain 0.049% of this active ingredient and are of low acute toxicity; Limited "supplementary" studies from open literature for the pure substance also demonstrate low acute oral toxicity and at 2% in petroleum no irritation or sensitization to human skin; [Reference #1] Safe when used as a flavoring agent in food; [JECFA] A skin and strong eye irritant; [Alfa Aesar MSDS] See "Butyrolactone" and "gamma-Nonalactone."

Reference Link

EPA Pesticide Chemical Search

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: