Laminarin

Chemical data

Formula: C18H32O16
Molecular weight: 504.4 g/mol
IUPAC name: (3R,4S,5R,6R)-4-[(3R,4S,5R,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-[(3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-6-(hydroxymethyl)oxane-2,3,5-triol
SMILES: C([C@@H]1[C@H]([C@@H]([C@H](C(O1)O)O)OC2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)OC3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)O)O)O
InChIKey: DBTMGCOVALSLOR-VPNXCSTESA-N
XLogP: -5.8
Polar surface area: 269 Å²
H-bond donors: 11
H-bond acceptors: 16
Formal charge: 0

via PubChem

Research

1,474 papers

Laminarin, a Major Polysaccharide in Stramenopiles.Marine drugs · 2021
Biomedical applications of laminarin.Carbohydrate polymers · 2020
Seaweed-derived laminarin and alginate as potential chemotherapeutical agents: An updated comprehensive review considering cancer treatment.International journal of biological macromolecules · 2025
Synergistic microglial modulation by laminarin-based platinum nanozymes for potential intracerebral hemorrhage therapy.Biomaterials · 2025
Laminarin ameliorates alcohol-induced liver damage and its molecular mechanism in mice.Journal of food biochemistry · 2022

via PubMed

Wikidata facts

Instance of: polysaccharide
Mass: 504.169035
Has use: fungicide

Show 4 more facts

chemical formula: C₁₈H₃₂O₁₆
canonical SMILES: C(C1C(C(C(C(O1)O)O)OC2C(C(C(C(O2)CO)O)OC3C(C(C(C(O3)CO)O)O)O)O)O)O
isomeric SMILES: C([C@@H]1[C@H]([C@@H]([C@H](C(O1)O)O)OC2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)OC3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)O)O)O
subject has role: anticoagulant

Sources (2)

via Wikidata · CC0

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Encyclopedic overview

1 sections

Contents

References

The molecule laminarin (also known as laminaran) is a storage glucan (a polysaccharide of glucose) found in brown algae. It is used as a carbohydrate food reserve in the same way that chrysolaminarin is used by phytoplankton, especially in diatoms. It is created by photosynthesis and is made up of β(1→3)-glucan with β(1→6)-branches. It is a linear polysaccharide, with a β(1→3):β(1→6) ratio of 3:1. Its hydrolysis is catalyzed by enzymes such as laminarinase (EC 3.2.1.6) that breaks the β(1→3) bonds. It has been suggested that the annual production of algae laminarin amounts to 12 ± 8 gigatons, i.e., about three times the annual atmospheric CO2 increase by fossil fuel burning, that its concentration is driven by light variability and that it contributes substantially to the carbon export from surface waters, as it may account for up to half of organic carbon in sinking diatom-containing particles.

==References==

Excerpted from Wikipedia’s “Laminarin” article, available under the CC BY-SA 4.0 licence.