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Linolenic acid

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Identification
Molecular formula
C18H30O2
CAS number
463-40-1
IUPAC name
octadeca-8,11,14-trienoic acid
State
State

At room temperature, linolenic acid is usually in a liquid state. It is an unsaturated omega-3 fatty acid commonly found in vegetable oils.

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
278.4450g/mol
Density
0.9058g/cm3
Appearence

Linolenic acid is a colorless to pale yellow liquid at room temperature. It may appear as an oily liquid and is often found as a component of oils that contain multiple fatty acids.

Comment on solubility

Solubility of Octadeca-8,11,14-trienoic Acid

Octadeca-8,11,14-trienoic acid, commonly known as α-linolenic acid (ALA), is a polyunsaturated fatty acid that exhibits interesting solubility characteristics due to its long carbon chain and multiple double bonds.

Solubility in Various Solvents

ALA displays different solubility properties in various solvents, which can be summarized as follows:

  • Polar solvents (e.g., water): ALA has very low solubility in water due to its hydrophobic carbon chain.
  • Non-polar solvents (e.g., hexane, chloroform): ALA is highly soluble in non-polar organic solvents, owing to the similarity in their chemical nature.
  • Alcohols (e.g., ethanol): ALA demonstrates moderate solubility in alcohols, as their polarity allows for some interaction with the fatty acid.

Factors Influencing Solubility

The solubility of octadeca-8,11,14-trienoic acid can be influenced by several factors:

  • Temperature: Generally, as temperature increases, solubility in solvents may also increase.
  • Chain length: The long carbon chain contributes to the hydrophobic nature of the compound, affecting its solubility in polar solvents.
  • Presence of functional groups: The carboxylic acid group enhances solubility in polar solvents to some degree, but the overall effect remains limited.

In conclusion, the solubility of octadeca-8,11,14-trienoic acid reflects its dual nature as both a hydrophobic and a somewhat amphipathic molecule, making it a fascinating subject for further study in chemical and biological systems.

Interesting facts

Interesting Facts about Octadeca-8,11,14-trienoic Acid

Octadeca-8,11,14-trienoic acid, commonly known as alpha-linolenic acid (ALA), is a fascinating compound belonging to the omega-3 fatty acids family. This essential fatty acid holds significant relevance in both nutritional science and biochemistry. Here are some insightful points to consider:

  • Essential Fatty Acid: ALA is categorized as an essential fatty acid, meaning our bodies cannot synthesize it independently. Hence, we must obtain it through our diet, primarily from sources like flaxseeds, walnuts, and chia seeds.
  • Cardiovascular Benefits: Numerous studies have indicated that ALA consumption may help in reducing the risk of heart disease. It plays a role in lowering bad cholesterol levels and supporting overall cardiovascular health.
  • Anti-inflammatory Properties: ALA is recognized for its anti-inflammatory capabilities, making it beneficial for combating various inflammatory disorders, potentially aiding conditions such as arthritis.
  • Brain Health: As a component of neural membranes, ALA is crucial for maintaining brain function. It is believed to support cognitive health and may even help in mitigating age-related cognitive decline.
  • Metabolic Function: Research has shown that ALA can assist in regulating metabolic functions. It may play a role in fat metabolism and is linked to improvements in insulin sensitivity.

As scientists continue to explore the myriad benefits of ALA, they emphasize the importance of incorporating adequate amounts of omega-3 fatty acids into our diets. The quote from Nutritionist Michael Greger nicely summarizes its importance: "A diet rich in omega-3 fatty acids can help temper chronic inflammation and improve heart health."

Overall, octadeca-8,11,14-trienoic acid represents a vital component of a healthy diet, highlighting the intricate connection between nutrition and biochemistry.

Synonyms
8,11,14-Octadecatrienoic acid
OCTADECA-8,11,14-TRIENOIC ACID