Passa al contenuto
Merck

Vai a

A7003

Alginic acid from brown algae

powder

Sinonimo/i:

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

per visualizzare i prezzi organizzativi e contrattuali.

Scegli un formato

Cambia visualizzazione
A voi/SKUDisponibilitàPrezzo
100 g
Per informazioni sulla disponibilità, contatta il Servizio Clienti.
55,30 €
250 g
Per informazioni sulla disponibilità, contatta il Servizio Clienti.
122,00 €
500 g
Per informazioni sulla disponibilità, contatta il Servizio Clienti.
200,00 €
1 kg
Per informazioni sulla disponibilità, contatta il Servizio Clienti.
332,00 €

Informazioni su questo articolo

Formula condensata:
(C6H8O6)n
Numero CAS:
UNSPSC Code:
12171500
EC Number:
232-680-1
NACRES:
NA.47
MDL number:

55,30 €


Per informazioni sulla disponibilità, contatta il Servizio Clienti.

Richiedi un ordine personalizzato
Servizio Tecnico
Hai bisogno di aiuto? Il nostro team di scienziati qualificati è a tua disposizione.
Permettici di aiutarti


form

powder

Quality Segment

technique(s)

titration: suitable

color

white to light yellow

pH range

1.5-3.5

mp

300 °C

solubility

H2O: insoluble, but swells, aqueous base: soluble

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

General description

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.[1] It is reported to inhibit the reverse transcriptase activity of HIV.[1] Structural investigation of alginic acid, a marine algal polysaccharide poly-α-L-guluronic acid, has been reported.[2] Anti-inflammatory effect of alginic acid, isolated from the brown algae Sargassum wightii, in type II collagen induced arthritic rats has been reported.[3] 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).

Application

Alginic acid is suitable reagent used to study the in-vitro and in-vivo mitogenic activity of alginates.[4] It is suitable for use in the spectrophotometric determination of transparent exopolymer particles by dye-binding assay.

Other Notes

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

Confronta articoli simili

Visualizza il confronto per intero

Mostra le differenze

1 of 1

Questo articolo
71238A1112A2033
technique(s)

titration: suitable

technique(s)

-

technique(s)

-

technique(s)

-

color

white to light yellow

color

white to light beige

color

white to brown

color

white to brown

solubility

H2O: insoluble, but swells, aqueous base: soluble

solubility

-

solubility

water: 10 mg/mL, cloudy to hazy, faintly yellow

solubility

water: 10 mg/mL, slightly hazy to strongly hazy, faintly yellow to yellow

form

powder

form

powder

form

powder

form

powder

storage temp.

room temp

storage temp.

room temp

storage temp.

2-8°C

storage temp.

2-8°C

mp

300 °C

mp

-

mp

-

mp

-


Classe di stoccaggio

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documenti section.

Se ti serve aiuto, non esitare a contattarci Servizio Clienti

Possiedi già questo prodotto?

I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti



Domande

1–3 di 3 domande  
  1. What is the molecular weight of A7003 alginic acid?

    1 risposta
    1. The molecular weight of this product is approximately 240 kDa.

      Utile?

  2. What is the purity of the product?

    1 risposta
    1. The purity of this product is not determined.

      Utile?

  3. What is the M:G ratio for A7003 alginic acid?

    1 risposta
    1. The mannuronic and guluronic content of the alginic acid in product A7003 is not a measured. The information stated on the product datasheet - 61% mannuronic acid and 39% guluronic acid - is on the basis of what is reported in the literature. Please see the link below to review the Product Information Sheet:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/376/103/a7003pis.pdf

      Utile?

Recensioni

Nessuna valutazione

Filtri attivi