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Linolenic acid

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Identification
Molecular formula
C18H30O2
CAS number
463-40-1
IUPAC name
octadeca-9,12,15-trienoic acid
State
State

At room temperature, linolenic acid is typically a liquid. It may solidify at slightly lower temperatures, but under normal conditions, it is distinctly fluid.

Melting point (Celsius)
-11.00
Melting point (Kelvin)
262.15
Boiling point (Celsius)
230.00
Boiling point (Kelvin)
503.15
General information
Molecular weight
278.45g/mol
Molar mass
278.4340g/mol
Density
0.9000g/cm3
Appearence

Linolenic acid is a colorless liquid which can sometimes appear pale yellow. It is sensitive to air and light, leading to rapid oxidation and the formation of off-odors or rancidity when exposed to these elements without stabilization.

Comment on solubility

Solubility of Octadeca-9,12,15-trienoic Acid

Octadeca-9,12,15-trienoic acid, commonly known as alpha-linolenic acid (ALA), is a polyunsaturated fatty acid characterized by its unique chain of carbon atoms. Understanding its solubility properties can be crucial for various applications in nutrition and biochemistry.

Water Solubility

ALA is generally considered to be:

  • Low in water solubility: Due to its long hydrophobic hydrocarbon chain, ALA has limited ability to dissolve in water, making aqueous formulations challenging.

Solubility in Organic Solvents

In contrast, octadeca-9,12,15-trienoic acid displays favorable solubility characteristics in organic solvents:

  • Highly soluble in: Methanol, ethanol, and other polar organic solvents.
  • Moderately soluble in: Chlorinated solvents, such as chloroform and dichloromethane.

Factors Influencing Solubility

The solubility of ALA can be influenced by several factors:

  • Temperature: Increased temperature generally enhances solubility in organic solvents.
  • Presence of surfactants: The addition of surfactants may improve overall solubility in aqueous environments.

In summary, while octadeca-9,12,15-trienoic acid is not soluble in water, its solubility in organic solvents makes it a versatile compound for various scientific and nutritional applications. Understanding these solubility characteristics is key to effectively utilizing ALA in different formulations.

Interesting facts

Interesting Facts about Octadeca-9,12,15-trienoic Acid

Octadeca-9,12,15-trienoic acid, commonly known as alpha-linolenic acid (ALA), is an essential omega-3 fatty acid that plays a crucial role in human nutrition and health. Here are some compelling details about this fascinating compound:

  • Dietary Essentiality: As an essential fatty acid, C18H30O2 cannot be synthesized by the human body and must be obtained through dietary sources. Rich sources include flaxseeds, chia seeds, and walnuts.
  • Heart Health: ALA is known for its cardiovascular benefits. Research suggests that incorporating ALA into your diet can help lower the risk of heart disease by reducing inflammation and improving heart health markers.
  • Brain Function: Omega-3 fatty acids, including ALA, are vital for maintaining optimal brain function and may play a role in protecting against cognitive decline as people age.
  • Anti-inflammatory Properties: ALA has been shown to possess anti-inflammatory effects, which can contribute to alleviating conditions such as arthritis and other inflammatory diseases.
  • Conversion to Other Omega-3s: The body can convert ALA into other important omega-3 fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), although this process is not highly efficient.
  • Culinary Uses: Beyond its health benefits, ALA-rich oils such as flaxseed oil are celebrated in culinary practices, often used in salad dressings and toppings to enhance flavor and nutritional value.

As we continue to understand the complex interactions of various nutrients in our diet, the significance of compounds like C18H30O2 in promoting overall health becomes increasingly clear. Whether you are a chemistry student or a nutrition enthusiast, recognizing the importance of essential fatty acids can contribute to a balanced and healthful lifestyle.

Synonyms
9,12,15-Octadecatrienoic acid
Octadeca-9,12,15-trienoic acid
1955-33-5
Linseed acid
?-Linolenic acid-d5
|A-Lnn
CBiol_001952
KBioGR_000096
KBioSS_000096
9,12,15-octadecatrienic acid
9,12,15-octadectrienoic acid
CHEMBL3560296
DTXSID7075058
KBio2_000096
KBio2_002664
KBio2_005232
KBio3_000191
KBio3_000192
DTOSIQBPPRVQHS-UHFFFAOYSA-N
Bio1_000238
Bio1_000727
Bio1_001216
Bio2_000096
Bio2_000576
BCP18966
VFA19104
AKOS028108942
NCGC00091058-11
SY013852
NS00076871
NS00082101
Q27164304