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A7002

Agar

ash 2.0-4.5%

Synonym(s):

Agar-agar, Gum agar

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About This Item

Linear Formula:
(C12H18O9)n
CAS Number:
9002-18-0
UNSPSC Code:
50405901
eCl@ss:
42040102
EC Number:
232-658-1
NACRES:
NB.22
MDL number:
MFCD00081288
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biological source

algae (Rhodophyceae)

Quality Level

200

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)

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

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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

11 - Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN8766
BCCN6772
BCCN4314
BCCN1360
BCCL6847

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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
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)
Chemical structure and physico-chemical properties of agar
International Workshop on Gelidium, 21(11), 137-148 (1991)
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Global Trade Item Number

SKUGTIN
A7002-100G04061835542420
A7002-250G04061835542437
A7002-5KG04061835542451
A7002-500G04061835542444
A7002-1KG04061835442256

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