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Methyl octanoate

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Identification
Molecular formula
C9H18O2
CAS number
111-11-5
IUPAC name
methyl octanoate
State
State

At room temperature, methyl octanoate exists as a liquid. This ester is known for its volatility and is commonly used to impart fruity flavors or scents in various products.

Melting point (Celsius)
-27.00
Melting point (Kelvin)
246.00
Boiling point (Celsius)
194.00
Boiling point (Kelvin)
467.00
General information
Molecular weight
158.24g/mol
Molar mass
158.2430g/mol
Density
0.8745g/cm3
Appearence

Methyl octanoate is a colorless to pale yellow liquid. It has a fruity, waxy odor and is often used in the flavor and fragrance industry due to its pleasant smell.

Comment on solubility

Solubility of Methyl Octanoate

Methyl octanoate, with the chemical formula C9H18O2, exhibits unique solubility characteristics that make it relevant in various applications. This compound is a member of the ester class of compounds, which tend to have different solubility behavior compared to alcohols and acids.

As a medium-chain fatty acid ester, methyl octanoate is generally soluble in organic solvents such as:

  • Alcohols
  • Chloroform
  • Acetone

However, it is largely insoluble in water due to its hydrophobic carbon chain, which hinders its interaction with polar water molecules. The solubility of methyl octanoate can be succinctly described by the following points:

  1. Non-polar nature: The long hydrocarbon chain contributes to its non-polar characteristics.
  2. Temperature dependency: Increased temperatures can enhance solubility in organic solvents.
  3. Applications: Its solubility profile makes it suitable as a flavoring agent and in biodiesel production.

In summary, while methyl octanoate is effective in non-polar environments, its limited solubility in water underscores the typical behavior of fatty acid esters, highlighting the interplay between molecular structure and solubility behavior.

Interesting facts

Interesting Facts about Methyl Octanoate

Methyl octanoate is an intriguing ester that arises from the reaction between methanol and octanoic acid. This compound is particularly noteworthy for several reasons:

  • Flavor and Aroma: Methyl octanoate is known for its pleasant, fruity scent, often likened to that of peaches or pineapples. This characteristic makes it a popular choice in the food and fragrance industries as a flavoring agent.
  • Natural Occurrence: It can be found in various natural sources, including some fruits and the milk of certain mammals, highlighting its significance in both nature and industry.
  • Biodegradability: One of the appealing features of methyl octanoate is its potential for biodegradability, making it a more environmentally friendly option in comparison to petroleum-based compounds.
  • Chemical Synthesis: In the laboratory, methyl octanoate can be synthesized through a method known as esterification, which involves combining a carboxylic acid and an alcohol. This reaction exemplifies an essential concept in organic chemistry.
  • Uses in Biofuels: Given its fatty acid methyl ester structure, methyl octanoate has attracted attention in the development of biodiesel, positioning it as a sustainable alternative to traditional fuels.

As a scientist or chemistry student, exploring the applications and characteristics of methyl octanoate provides a window into the fascinating world of organic compounds. In many ways, this ester illustrates the delicate balance between nature and synthetic chemistry, serving as a prime example of how simple reactions can lead to significant products used in various industries.

Synonyms
Methyl octanoate
111-11-5
Methyl caprylate
Caprylic acid methyl ester
Methyl n-octanoate
OCTANOIC ACID, METHYL ESTER
Uniphat A20
Octanoic acid methyl ester
Methyl octylate
Methyl caprylate (natural)
FEMA No. 2728
formyl octanoate
HSDB 5544
Methyl ester octanoic acid
NSC 3710
EINECS 203-835-0
UNII-7MO740X6QL
MFCD00009551
BRN 1752270
DTXSID2026864
CHEBI:87432
AI3-01979
NSC-3710
octanoic acid-methyl ester
C08 FAME
Caprylic acid, methyl ester
n-Caprylic acid methyl ester
Methyl ester of octanoic acid
7MO740X6QL
DTXCID606864
METHYL OCTANOATE [FHFI]
WE(1:0/8:0)
EC 203-835-0
METHYL CAPRYLATE [USP-RS]
4-02-00-00986 (Beilstein Handbook Reference)
OCTANOIC ACID, METHYL ESTER [HSDB]
n-Octanoic Acid Methyl Ester
METHYL CAPRYLATE (USP-RS)
CAS-111-11-5
methyloctanoate
Methyl Caprylate; Octanoic acid methyl ester; Methyl octanoate
Methyl noctanoate
methyl octanoic acid
Methyl caprylic acid
Caprylate methyl ester
Octanoate methyl ester
Methyl octanoate, 99%
PASTELL M 08
UNIPHAT A 20
Methyl octanoate (Standard)
SCHEMBL27416
Methyl octanoate, 99%, FG
METHYL CAPRYLATE [INCI]
CHEMBL3183908
MSK1806
NSC3710
HY-W087943R
UYB79891
Tox21_201470
Tox21_300557
BBL011470
LMFA07010446
Methyl octanoate, analytical standard
STL146582
AKOS005721017
HY-W087943
Octanoic acid methyl ester (FAME MIX)
NCGC00163978-01
NCGC00163978-02
NCGC00163978-03
NCGC00254484-01
NCGC00259021-01
AS-56805
DB-003612
CS-0128781
NS00007708
O0033
S0306
EN300-7110910
Q3348789
1A56EE3E-501F-4327-A796-0B21C0CBD8BF
Methyl octanoate, certified reference material, TraceCERT(R)
Methyl caprylate, United States Pharmacopeia (USP) Reference Standard
203-835-0