Alginic acid, M.W. ~240,000 (from Macrocystis pyrifera (kelp)), off-white powder

Supplier: MP Biomedicals
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0215472291 0215472280 0215472283 0215472290
ICNA0215472291EA 162 GBP
ICNA0215472291 ICNA0215472280 ICNA0215472283 ICNA0215472290
Alginic acid, M.W. ~240,000 (from Macrocystis pyrifera (kelp)), off-white powder
Alginic acid

A straight-chain, hydrophilic, colloidal, polyuronic acid composed primarily of anhydro-β-D-mannuronic acid residues with 1→4 linkage.


Alginic acid is suitable reagent used to study the in-vitro and in-vivo mitogenic activity of alginates. It is suitable for use in the spectrophotometric determination of transparent exopolymer particles by dye-binding assay.


It is reported to inhibit the reverse transcriptase activity of HIV. Structural investigation of alginic acid, a marine algal polysaccharide poly-α-L-guluronic acid, has been reported. Anti-inflammatory effect of alginic acid, isolated from the brown algae Sargassum wightii, in type II collagen induced arthritic rats has been reported. Pyrolysis of alginic acid using py-GC/MS over a wide temperature range (200-800°C) and thermogravimetric analysis (TGA) has been reported. It was reported to cause the biocorrosion of thin films of copper on germanium internal reflection elements (IREs).


Insoluble, but swells in water; slightly soluble in alkalis [soluble in 0,1 M NaOH].

Formula: (C₆H₈O₆)n
Melting Pt: 300 °C
Storage Temperature: Ambient
MDL Number: MFCD00081309
CAS Number: 9005-32-7
EINECS: 232-680-1

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