Name: Agar
Brand: SIGMA

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About This Item

Linear Formula:

(C₁₂H₁₈O₉)_n

CAS Number:

9002-18-0

EC Number:

232-658-1

MDL number:

MFCD00081288

UNSPSC Code:

50405901

NACRES:

NA.21

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biological source

algae (Rhodophyceae)

Quality Level

200

form

powder

technique(s)

cell culture | plant: suitable

mp

80-90 °C (1.5% in water)

transition temp

transition temp 27-37 °C (1.5%)

application(s)

agriculture

storage temp.

room temp

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

General description

Agar or Agar-agar is one of the major components found in the cell wall of red algae. It is a polysaccharide complex, comprising about 70% agarose and 30% agaropectin.

Application

Washed agar has been used:

as a supplement (0.9% w/v) to Murashige and Skoog basal medium for plant growth
in the preparation of cocultivation medium for Agrobacterium tumefaciens mediated transformation in maize (Zea mays) hybrid Hi-II
as a component in the complete medium to regenerate protoplasts of Piriformospora indica
as a clean agar medium to culture Synechococcus WH7803 strain

Biochem/physiol Actions

Agar is an ester of sulfuric acid in a linear galactan form, that makes it soluble in hot water and insoluble in cold. Washed agar contain less impurities and low level of nutrients.

Preparation Note

Washed

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Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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