α-Linolenic acid, also known as alpha-linolenic acid (ALA) (from Greek alpha meaning "first" and linon meaning flax), is an n−3, or omega-3, essential fatty acid. ALA is found in many seeds and oils, including flaxseed, walnuts, chia, hemp, and many common vegetable oils.
In terms of its structure, it is named all-cis-9,12,15-octadecatrienoic acid. In physiological literature, it is listed by its lipid number, 18:3 (n−3). It is a carboxylic acid with an 18-carbon chain and three cis double bonds. The first double bond is located at the third carbon from the methyl end of the fatty acid chain, known as the n end. Thus, α-linolenic acid is a polyunsaturated n−3 (omega-3) fatty acid. It is a regioisomer of gamma-linolenic acid (GLA), an 18:3 (n−6) fatty acid (i.e., a polyunsaturated omega-6 fatty acid with three double bonds). |
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InChI=1S/C6H12O4/c1-6(10,2-3-7)4-5(8)9/h7,10H,2-4H2,1H3,(H,8,9)/t6-/m1/s1 |
KJTLQQUUPVSXIM-ZCFIWIBFSA-N |
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Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
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View more via ChEBI Ontology
(3R)-3,5-dihydroxy-3-methylpentanoic acid
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(−)-mevalonic acid
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ChEBI
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(3R)-3,5-dihydroxy-3-methylvaleric acid
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ChEBI
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(3R)-mevalonic acid
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ChEBI
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(R)-(−)-mevalonic acid
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ChEBI
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(R)-3,5-dihydroxy-3-methylpentanoic acid
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ChEBI
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(R)-3,5-dihydroxy-3-methylvaleric acid
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ChEBI
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D-mevalonic acid
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ChEBI
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R-mevalonic acid
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ChEBI
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R-MVA
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ChEBI
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1722593
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Reaxys Registry Number
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Reaxys
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17817-88-8
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CAS Registry Number
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KEGG COMPOUND
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