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A7003

Sigma-Aldrich

Alginic acid from brown algae

powder

Szinonimák:

Alginic acid from Macrocystis pyrifera (kelp), Mixed polymer of mannuronic and guluronic acid

Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(5)

About This Item

Lineáris képlet:
(C6H8O6)n
CAS-szám:
9005-32-7
EC-szám:
232-680-1
MDL-szám:
MFCD00081309
UNSPSC kód:
12171500
NACRES:
NA.47

Forma

powder

Minőségi szint

200

technika/technikák

titration: suitable

szín

white to light yellow

pH-tartomány

1.5-3.5

mp

300 °C

oldhatóság

H2O: insoluble, but swells
aqueous base: soluble

alkalmazás(ok)

diagnostic assay manufacturing
hematology
histology

tárolási hőmérséklet

room temp

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Általános leírás

Alginic acid is a high molecular weight linear polymer isolated from seaweed. It is a linear β-1→4-linked polymer of n-mannuronic and L-guluronic acid. It is an acid polysaccharide present in the extracellular matrix of brown algae. 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).

Alkalmazás

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.

Egyéb megjegyzések

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

Tárolási osztály kódja

11 - Combustible Solids

WGK

WGK 2

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Egyéni védőeszköz

Eyeshields, Gloves, type N95 (US)

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Analitikai tanúsítványok (COA)

Lot/Batch Number
0000401399
0000399352
0000382762
0000401399
0000399352

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Sigma-Aldrich

440299

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Sigma-Aldrich

A1603

Alginate Lyase

K C S Queiroz et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 62(5), 303-307 (2008-05-06)
Brown algae have two kinds of acid polysaccharides present in the extracellular matrix: sulfated fucan and alginic acid. We have previously isolated and characterized fucans from several species of brown seaweed. The characterized fucans from Dictyotaceae are heterofucans containing mainly
G Klöck et al.
Applied microbiology and biotechnology, 40(5), 638-643 (1994-01-01)
Alginate is used as a matrix for immunoisolation of cells and tissues in vivo. We have demonstrated previously that commercial alginates contain various fractions of mitogenic impurities and that they can be removed by free flow electrophoresis. The use of
C H Sarithakumari et al.
International immunopharmacology, 17(4), 1108-1115 (2014-01-22)
The present study evaluated the anti-inflammatory potential of alginic acid isolated from the brown algae Sargassum wightii in type II collagen induced arthritic rats, a well established arthritic model that resembles more closely to human rheumatoid arthritis in its clinical
Structural components of alginic acid. II. The crystalline structure of poly-alpha-L-guluronic acid. Results of x-ray diffraction and polarized infrared studies.
E D Atkins et al.
Biopolymers, 12(8), 1879-1887 (1973-01-01)
Ramón Rial et al.
Nanomaterials (Basel, Switzerland), 10(7) (2020-07-09)
Hydrogels exhibit excellent properties that enable them as nanostructured scaffolds for soft tissue engineering. However, single-component hydrogels have significant limitations due to the low versatility of the single component. To achieve this goal, we have designed and characterized different multi-component
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