109-42-2

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109-42-2 Structure

Identification	Back Directory
[Name] BUTYL UNDECYLENATE
[CAS] 109-42-2
[Synonyms] FEMA 2216 butylundec-10 BUTYL UNDECYLENATE BUTYL UNDECYLENOATE N-BUTYL UNDECYLENATE BUTYL 10-UNDECENOATE butyl10-undecylenate butylundec-10-enoate Butyl 10-undecylenate n-Butyl 10-undecenoate BUTYL 10-UNDECENOATE 98+% NATURAL BUTYL UNDECYLENATE Butyl undecylenate≥ 98% (GC) undec-10-enoicacidbutylester 10-Undecenoicacid,butylester
[EINECS(EC#)] 203-670-4
[Molecular Formula] C15H28O2
[MDL Number] MFCD00048776
[MOL File] 109-42-2.mol
[Molecular Weight] 240.38

Chemical Properties	Back Directory
[Melting point ] 1.3°C (estimate)
[Boiling point ] 249-254 °C756 mm Hg(lit.)
[density ] 0.87 g/mL at 25 °C(lit.)
[FEMA ] 2216 \| BUTYL 10-UNDECENOATE
[refractive index ] n20/D 1.4413(lit.)
[Fp ] >230 °F
[storage temp. ] 2-8°C
[Odor] at 100.00 %. fatty butter wine floral fruity
[biological source] synthetic
[Odor Type] fatty
[JECFA Number] 344
[LogP] 6.04
[EPA Substance Registry System] 10-Undecenoic acid, butyl ester (109-42-2)

Safety Data	Back Directory
[WGK Germany ] 2
[RTECS ] YQ2978000
[Safety Profile] Mildly toxic by ingestion. A slam irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
[Toxicity] rabbit,LD50,skin,> 5gm/kg (5000mg/kg),Food and Cosmetics Toxicology. Vol. 17, Pg. 729, 1979.

Raw materials And Preparation Products	Back Directory
[Raw materials] 1-Butanol-->Undecenoic acid

Hazard Information	Back Directory
[Chemical Properties] Butyl 10-undecenoate has a slightly fatty, buttery, wine-like, unpleasant odor.
[Uses] flavors and fragrances
[Definition] ChEBI: Butyl undecylenate is a fatty acid ester.
[Preparation] By esterification of the acid with n-butyl alcohol at the boiling point in the presence of concentrated H2SO4 or in benzene solution.

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