Methyl heptanoate

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Methyl heptanoate
Skeletal formula of methyl heptanoate
Names
IUPAC name
Methyl heptanoate
Other names
Methyl heptylate
Methyl enanthate
Methyl oenanthate
Heptanoic acid, methyl ester
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.003.118 Edit this at Wikidata
EC Number
  • 203-428-8
UNII
  • Key: XNCNNDVCAUWAIT-UHFFFAOYSA-N
  • InChI=1S/C8H16O2/c1-3-4-5-6-7-8(9)10-2/h3-7H2,1-2H3
  • CCCCCCC(=O)OC
Properties
C8H16O2
Molar mass 144.214 g·mol−1
Appearance Colorless liquid[1]
Density 0.880 g/cm3 (20 °C)[1]
Melting point −56 °C (−69 °F; 217 K)[1]
Boiling point 171–172 °C (340–342 °F; 444–445 K)[1]
Insoluble in water[1]
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation mark
Warning
H226, H315
P210, P233, P240, P241, P242, P243, P264, P280, P302+P352, P303+P361+P353, P321, P332+P317, P362+P364, P370+P378, P403+P235, P501
Flash point 52 °C (126 °F; 325 K)[1]
Lethal dose or concentration (LD, LC):
> 5,000 mg/kg (oral, rat)
> 5,000 mg/kg (dermal, rabbit)
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Methyl heptanoate is an organic compound with the chemical formula CH3(CH2)5CO2CH3. It is the methyl ester of heptanoic acid (also known as enanthic acid). This fatty acid ester is a colorless, oily liquid with a fruity, wine-like odor that is used in the flavor and fragrance industries.[1]

Methyl heptanoate is a colorless to pale yellow liquid at room temperature. It has a characteristic orris, winey, brandy-like aroma with cognac and fruity undertones.[2][3] The compound is practically insoluble in water but miscible with most organic solvents and oils.

Occurrence and production

Methyl heptanoate occurs naturally in trace amounts in some fruits and fermented products. It has been identified as a volatile component in fruits such as strawberries, grapes, and wine and in flowering plants such as Astragalus.[4]

Commercially, it is produced by esterification of heptanoic acid with methanol in the presence of an acid catalyst (typically sulfuric acid) or via transesterification of triglycerides containing heptanoic acid. It is also available through the methanolysis of natural oils that contain other heptanoate esters.[5]

Uses

Safety

References

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