Key Documents

View All Documentation

56763

Agar

Name: Agar
Brand: SIAL

high purity, low ionic content, low gel strenght, suitable for microbiology

Synonym(s):

Agar-agar, Gum agar, Agar-agar, Gum agar

Select a Size

Change View

About This Item

Linear Formula:

(C₁₂H₁₈O₉)_n

CAS Number:

9002-18-0

UNSPSC Code:

41106212

NACRES:

NA.85

EC Number:

232-658-1

MDL number:

MFCD00081288

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Quality Level

200

sterility

non-sterile

form

powder

shelf life

limited shelf life, expiry date on the label

ign. residue

≤4.0%

loss

≤10% loss on drying

turbidity

≤8 NTU (after autoclaving)

mp

85-95 °C

transition temp

gel point 34-36 °C

gel strength

≥800 g/cm²

anion traces

sulfate (SO₄^2-): ≤2.75%

cation traces

Ca: ≤500 mg/kg, Mg: ≤200 mg/kg

application(s)

microbiology

SMILES string

O1[C@@H]([C@@H]([C@@H]([C@H](C1OC2[C@H]3OCC2OC([C@H]3O)C)O)OC)O)CO

InChI

1S/C14H24O9/c1-5-8(16)13-11(7(21-5)4-20-13)23-14-10(18)12(19-2)9(17)6(3-15)22-14/h5-18H,3-4H2,1-2H3/t5?,6-,7?,8-,9+,10-,11?,12+,13+,14?/m1/s1

InChI key

GYYDPBCUIJTIBM-DYOGSRDZSA-N

Description

General description

Agar is of high purity, low ionic content, and low gel strength widely used in microbiology as a solidifying agent in microbial culture media. It is a polysaccharide derived from seaweed and is primarily composed of agarose. Agar is a mostly inert substance, which makes it an ideal material for microbial culture media because it doesn’t interfere with the growth of microorganisms. Agar can solidify media, allowing microorganisms to grow in a solid environment, which facilitates the formation of distinct colonies and selective isolation of specific microorganisms. Agar is also used in the preparation of selective and differential media, which can provide additional nutrients or other chemical substances to promote or inhibit the growth of specific microorganisms selectively. Agar is sterilized by autoclaving and then poured into Petri dishes, where it can cool and solidify, forming the surface for microbial growth.

Application

Agar is commonly used as a solidifying agent in many microbial culture media for the growth and identification of bacteria, yeasts and molds from various pharmaceutical, environmental, food and beverage samples.

Analysis Note

toxic substances: absence

Still not finding the right product?

Explore all of our products under Agar

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

新产品

This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

BCCD5385

BCCB4264

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

Base Ingredients of Microbiology Media

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.

The porous surface model, a novel experimental system for online quantitative observation of microbial processes under unsaturated conditions.

Arnaud Dechesne et al.

Applied and environmental microbiology, 74(16), 5195-5200 (2008-07-01)

Water is arguably the most important constituent of microbial microhabitats due to its control of physical and physiological processes critical to microbial activity. In natural environments, bacteria often live on unsaturated surfaces, in thin (micrometric) liquid films. Nevertheless, no experimental

Extracellular bioluminescence of mycelium metabolites of the luminous mushroom Panellus stipticus (IBSO-2301) growing on an Agar medium.

A P Puzyr et al.

Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections, 448, 39-40 (2013-03-13)

Surface density mapping of natural tissue by a scanning haptic microscope (SHM).

Takeshi Moriwaki et al.

Journal of medical engineering & technology, 37(2), 96-101 (2013-01-31)

To expand the performance capacity of the scanning haptic microscope (SHM) beyond surface mapping microscopy of elastic modulus or topography, surface density mapping of a natural tissue was performed by applying a measurement theory of SHM, in which a frequency

View All Related Papers

Global Trade Item Number

SKU	GTIN
56763-500G	04061832589428