Key Documents

View All Documentation

05040

Agar

Name: Agar
Brand: SIAL

powder, suitable for microbiology

Synonym(s):

Agar-agar, Gum agar

Select a Size

Change View

About This Item

Linear Formula:

(C₁₂H₁₈O₉)_n

CAS Number:

9002-18-0

eCl@ss:

42040102

UNSPSC Code:

41106212

NACRES:

NA.74

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

sterility

non-sterile

Quality Level

100

form

powder

shelf life

limited shelf life, expiry date on the label

packaging

pkg of 1 kg, pkg of 100 g, pkg of 250 g

storage condition

(Tightly closed)

ign. residue

≤6%

loss

≤20% loss on drying

pH

5-8 (50 °C, 1.5% in H₂O, 100 °C/15 min.)

transition temp

gel point ~35 °C (1.5% solution)

gel strength

>300 g/cm² (1.5% gel)

solubility

H₂O: 1.5% at 70 °C, clear to slightly hazy (100 °C/15 min.)

application(s)

agriculture, microbiology

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 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 to promote the formation of distinct colonies and enable selective isolation of specific microorganism. It is also used to prepare 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 to 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, and food and beverage samples.

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

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

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.

Pilot Investigation into the Use of an Anthropomorphic Breast Sonography Phantom as a Training and Assessment Tool.

Jacinta E Browne et al.

Ultrasound in medicine & biology, 43(11), 2733-2740 (2017-08-28)

A device for the training and quantitative assessment of the competency of trainee radiologists in the technically challenging area of breast sonography was developed and evaluated. Currently, suitable commercially available devices are lacking, and there is a growing realization that

Propyl-5-hydroxy-3-methyl-1-phenyl-1H-pyrazole-4-carbodithioate (HMPC): a new bacteriostatic agent against methicillin-resistant Staphylococcus aureus.

Tatiana Johnston et al.

Scientific reports, 8(1), 7062-7062 (2018-05-08)

The emergence of Staphylococcus aureus strains resistant to 'last resort' antibiotics compels the development of new antimicrobials against this important human pathogen. We found that propyl 5-hydroxy-3-methyl-1-phenyl-1H-pyrazole-4-carbodithioate (HMPC) shows bacteriostatic activity against S. aureus (MIC = 4 μg/ml) and rescues Caenorhabditis elegans from

Simulation-based quantification of native T1 and T2 of the myocardium using a modified MOLLI scheme and the importance of Magnetization Transfer.

Christos G Xanthis et al.

Magnetic resonance imaging, 48, 96-106 (2017-12-31)

Quantitative cardiovascular Magnetic Resonance Imaging techniques are gaining wide acceptance within the MR community due to their potential to diagnose non-localized disease, guide therapy and improve patient outcome. During the last decade, there has been an increasing interest for developing

View All Related Papers

Global Trade Item Number

SKU	GTIN
E6003-25G	04061835347629
318906-500ML	04061826694640
E4382-100G	04061833603710
E4382-25G	04061833603727
E6003-100G	04061833604397
E6003-250G	04061833604403
539211-50MG	04055977268911
200-12	04061839402201
200-16	04061839402218
05040-1KG	04061822705173
05040-250G	04061835571321
05040-100G	04061838636508
05040-25KG	04061832578583