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62170

Sigma-Aldrich

Linolenic acid

~70% (GC)

Synonym(s):

α-Lnn, cis,cis,cis-9,12,15-Octadecatrienoic acid

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About This Item

Linear Formula:
CH3(CH2CH=CH)3(CH2)7CO2H
CAS Number:
463-40-1
Molecular Weight:
278.43
Beilstein:
1727693
EC Number:
207-334-8
MDL number:
MFCD00065720
UNSPSC Code:
12352211
PubChem Substance ID:
57651877
NACRES:
NA.77

Assay

~70% (GC)

Quality Level

200

impurities

~25% linoleic acid
~5% oleic acid

refractive index

n20/D 1.477
n20/D 1.480 (lit.)

bp

230-232 °C/1 mmHg (lit.)

mp

-11 °C (lit.)

density

0.914 g/mL at 25 °C (lit.)

lipid type

omega FAs

storage temp.

2-8°C

SMILES string

CC/C=C\C/C=C\C/C=C\CCCCCCCC(O)=O

InChI

1S/C18H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h3-4,6-7,9-10H,2,5,8,11-17H2,1H3,(H,19,20)/b4-3-,7-6-,10-9-

InChI key

DTOSIQBPPRVQHS-PDBXOOCHSA-N

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Biochem/physiol Actions

An ω-3 fatty acid that serves as a precursor to eicosapentaenoic acid (EPA) but not docosahexaenoic acid. Conversion is greater in women than men, and conversely, β-oxidation metabolism is greater in men than women.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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An Pan et al.
The American journal of clinical nutrition, 96(6), 1262-1273 (2012-10-19)
Prior studies of α-linolenic acid (ALA), a plant-derived omega-3 (n-3) fatty acid, and cardiovascular disease (CVD) risk have generated inconsistent results. We conducted a meta-analysis to summarize the evidence regarding the relation of ALA and CVD risk. We searched multiple
Ju-Sheng Zheng et al.
BMJ (Clinical research ed.), 346, f3706-f3706 (2013-07-03)
To investigate the association between intake of fish and n-3 polyunsaturated fatty acids (n-3 PUFA) and the risk of breast cancer and to evaluate the potential dose-response relation. Meta-analysis and systematic review of prospective cohort studies. PubMed and Embase up
Eoin Barrett et al.
PloS one, 7(11), e48159-e48159 (2012-11-28)
The aim of this study was to compare the impact of dietary supplementation with a Bifidobacterium breve strain together with linoleic acid & α-linolenic acid, for 7 weeks, on colonic sensitivity and fatty acid metabolism in rats. Maternally separated and
Gwendolyn Barceló-Coblijn et al.
Progress in lipid research, 48(6), 355-374 (2009-07-22)
There is little doubt regarding the essential nature of alpha-linolenic acid (ALA), yet the capacity of dietary ALA to maintain adequate tissue levels of long chain n-3 fatty acids remains quite controversial. This simple point remains highly debated despite evidence
Joel A Simon et al.
The American journal of clinical nutrition, 89(5), 1558S-1564S (2009-03-27)
alpha-Linolenic acid (ALA; 18:3n-3) has been associated inconsistently with an increased risk of prostate cancer. Additional studies have become available since the publication of 2 previous meta-analyses. The objective was to review the published data on the relation between ALA
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