Skip to Content
Merck
All Photos(5)

Key Documents

A7002

Sigma-Aldrich

Agar

ash 2.0-4.5%

Synonym(s):

Agar-agar, Gum agar

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
(C12H18O9)n
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
50405901
eCl@ss:
42040102
NACRES:
NB.22

biological source

algae (Rhodophyceae)

Quality Level

form

flakes
powder or crystals

technique(s)

tissue culture: suitable

ash

2.0-4.5%

gel strength

600-1200 g/cm2 (1.5%, 20 oC)

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

Looking for similar products? Visit Product Comparison Guide

General description

Agar is a polysaccharide consisting of β- D-galactopyranosyl and 3,6-anhydro-α-L- galactopyranosyl units. Depending on the source agar exists as various substituted forms such as methyl and sulphate ether. It is a linear galactan polysaccharide isolated from the cell wall of Rhodophyceae class of seaweeds.

Application

Agar has been used:
  • as a component of solid N6 complete medium
  • in modified Murashige and Skoog (MS) medium for culturing germinating lentil and faba bean seeds and in the regeneration of transgenic cauliflower and broccoli explants
  • as a component of agar mixture to simulate a vascular phantom in carotid vessel

Biochem/physiol Actions

Agar exists in left-handed helical conformation and aggregation of hexagonal fibers leads to gel formation. The hydrophobicity of the disaccharides determines its gelling property and solubility. Agar is a major component of the microbial solid medium. It has applications in tissue engineering, pharmaceutics and in cell encapsulation.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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.

Already Own This Product?

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

Visit the Document Library

Customers Also Viewed

Niranjan Khadka et al.
Neuromodulation : journal of the International Neuromodulation Society, 21(4), 334-339 (2017-01-24)
To assess if transcranial direct current stimulation (tDCS) produces a temperature change at the skin surface, if any change is stimulation polarity (anode or cathode) specific, and the contribution of passive heating (joule heat) or blood flow on such change.
Physical and chemical characterization of agar polysaccharides extracted from the Thai and Japanese species of Gracilaria
Praiboon J, et al.
ScienceAsia, 32(1), 11-17 null
Plant growth regulators improve in vitro flowering and rapid generation advancement in lentil and faba bean
Mobini SH, et al.
In Vitro Cellular & Developmental Biology, 51(1), 71-79 (2015)
Recovery of phenotypically normal transgenic plants of Brassica oleracea upon Agrobacterium rhizogenes-mediated co-transformation and selection of transformed hairy roots by GUS assay
Puddephat IJ, et al.
Molecular breeding : new strategies in plant improvement, 7(3), 229-242 (2001)
A Method for Radioactive labelling of Hebeloma cylindrosporum to study plant-fungus interactions
Becquer A, et al.
Bio-protocol, 7(20), 550-554 (2017)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service