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Key Documents

Safety Information

A1112

Sigma-Aldrich

Alginic acid sodium salt from brown algae

low viscosity

Synonym(s):

Algin, Sodium alginate

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About This Item

CAS Number:
9005-38-3
MDL number:
MFCD00081310
UNSPSC Code:
12352201
NACRES:
NA.25

biological source

algae (brown)

Quality Level

200

form

powder

color

white to brown

viscosity

4-12 cP, 1 % in H2O(25 °C)

solubility

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

storage temp.

2-8°C

InChI

1S/C6H10O7.Na/c7-1-2(8)4(5(10)11)13-6(12)3(1)9;/h1-4,6-9,12H,(H,10,11);/q;+1/p-1/t1-,2-,3-,4?,6+;/m0./s1

InChI key

MSXHSNHNTORCAW-MPGIDXPLSA-M

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Application

Acid hydrolysates of alginic acid can be used to prepare a-1,4-~-Polyguluronic and B- 1,4-~-Polymannuronic acids
Alginate, a colloidal polyuronic acid structural molecule capable of gelation, is used in the preparation of colloidal biodegradable structures such as gels, biofilms, beads, nanoparticles, and microcapsules suitable for applications that range from gel based separation technologies to drug delivery and cell preservation.

Other Notes

A straight-chain, hydrophilic, colloidal, polyuronic acid composed of guluronic and mannuronic acid residues.
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

A1112-500G:
A1112-250G:
A1112-VAR:
A1112-1KG:
A1112-100G:
A1112-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
0000298415
0000298415
SLCL4616
SLCJ6826
SLCH7413

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Pranav Joshi et al.
Current protocols in toxicology, 79(1), e66-e66 (2018-11-06)
High-content imaging (HCI) assays on two-dimensional (2D) cell cultures often do not represent in vivo characteristics accurately, thus reducing the predictability of drug toxicity/efficacy in vivo. On the other hand, conventional 3D cell cultures are relatively low throughput and possess
E E Farmer et al.
The Journal of biological chemistry, 266(5), 3140-3145 (1991-02-15)
The in vitro phosphorylation by [gamma-32P]ATP of a 34-kDa plasma membrane-associated protein (pp34) from tomato and potato is strongly enhanced in the presence of alpha-1,4-D-polygalacturonic acid (PGA) fragments (Farmer, E. E., Pearce, G., and Ryan, C. A. (1989) Proc. Natl.
Jordan Gulli et al.
Biotechnology progress, 36(1), e2925-e2925 (2019-10-07)
Encapsulated microbes have been used for decades to produce commodities ranging from methyl ketone to beer. Encapsulated cells undergo limited replication, which enables them to more efficiently convert substrate to product than planktonic cells and which contributes to their stress
Tim N Enke et al.
Current biology : CB, 29(9), 1528-1535 (2019-04-30)
Understanding the principles that govern the assembly of microbial communities across earth's biomes is a major challenge in modern microbial ecology. This pursuit is complicated by the difficulties of mapping functional roles and interactions onto communities with immense taxonomic diversity and
G Montalbano et al.
Materials science & engineering. C, Materials for biological applications, 91, 236-246 (2018-07-24)
Hydrogels based on natural polymers offer a range of properties to mimic the native extracellular matrix, and provide microenvironments to preserve cellular function and encourage tissue formation. A tri-component hydrogel using collagen, alginate and fibrin (CAF) was developed and investigated
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