LINOLENIC ACID
- Product Name
- LINOLENIC ACID
- CAS No.
- 68424-45-3
- Chemical Name
- LINOLENIC ACID
- Synonyms
- L 75;TRLA 50;ALPHA-LNN;Emery 644;L 75 (acid);Toenol 8183;Toenol LOFA;LINSEED ACID;Toenol 1140A;Nouracid LE 80
- CBNumber
- CB9666441
- Molecular Formula
- C18H30O2
- Formula Weight
- 278.43
- MOL File
- 68424-45-3.mol
LINOLENIC ACID Property
- Melting point:
- -11 °C(lit.)
- Boiling point:
- 230-232 °C1 mm Hg(lit.)
- Density
- 0.914 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.480(lit.)
- Flash point:
- >230 °F
- storage temp.
- 2-8°C
- CAS DataBase Reference
- 68424-45-3(CAS DataBase Reference)
- EPA Substance Registry System
- Linseed oil fatty acids (68424-45-3)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H317May cause an allergic skin reaction
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P321Specific treatment (see … on this label).
P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.
P363Wash contaminated clothing before reuse.
P501Dispose of contents/container to..…
LINOLENIC ACID Chemical Properties,Usage,Production
Description
α-Linolenic acid (ALA) is an organic compound found in many common vegetable oils. In terms of its structure, it is named all-cis- 9,12,15-octadecatrienoic acid. In physiological literature, it is given the name 18:3 (n?3).
α-Linolenic acid 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 an isomer of gamma-linolenic acid, a polyunsaturated n?6 (omega-6) fatty acid.
Occurrence
Seed oils are the richest sources of α-linolenic acid, notably those of chia, perilla, flaxseed (linseed oil), rapeseed (canola), and soybeans. Alpha-Linolenic acid is also obtained from the thylakoid membranes in the leaves of Pisum sativum (pea leaves). ALA is not suitable for baking, as it will polymerize with itself, a feature exploited in paint with transition metal catalysts. Some ALA will also oxidize at baking temperatures.
History
Alpha-linolenic acid was first isolated by Rollett as cited in J. W. McCutcheon's synthesis in 1942 , and referred to in Green and Hilditch's 1930's survey. It was first artificially synthesized in 1995 from C6 homologating agents. A Wittig reaction of the phosphonium salt of [(Z-Z)-nona-3,6-dien-1-yl]triphenylphosphonium bromide with methyl 9-oxononanoate, followed by saponification, completed the synthesis.
Definition
ChEBI: Alpha-linolenic acid is a linolenic acid with cis-double bonds at positions 9, 12 and 15. Shown to have an antithrombotic effect. It has a role as a micronutrient, a nutraceutical and a mouse metabolite. It is an omega-3 fatty acid and a linolenic acid. It is a conjugate acid of an alpha-linolenate and a (9Z,12Z,15Z)-octadeca-9,12,15-trienoate.
LINOLENIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
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