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A5054

Select agar

Synonym(s):

Agar, Agar-agar, Gum agar

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250 G

$216.00

1 KG

$647.00

$216.00

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About This Item

Linear Formula:
(C12H18O9)n
CAS Number:
9002-18-0
UNSPSC Code:
50405901
NACRES:
NA.75
EC Number:
232-658-1
MDL number:
MFCD00081288

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SMILES string

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

InChI key

GYYDPBCUIJTIBM-DYOGSRDZSA-N

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

form

powder

Quality Level

100

application(s)

food and beverages
life science and biopharma

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This Item
A6686A7921A9799
Select agar

Sigma-Aldrich

A5054

Select agar

Agar Bacteriological, microbiology tested, suitable for plant cell culture, granular

Sigma-Aldrich

A6686

Agar

Agar suitable for plant cell culture, powder

Sigma-Aldrich

A7921

Agar

Agar High gel strength, suitable for plant cell culture

Sigma-Aldrich

A9799

Agar

form

powder

form

granular

form

powder

form

powder

application(s)

food and beverages

application(s)

agriculture

application(s)

agriculture

application(s)

agriculture

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

General description

Noble agar, also known as agar or agar-agar, is a gelling hydrocolloid extracted from sea weeds such as Gelidium and Gracilaria.[1][2] It′s structure contains repeating units of D-galactose and 3,6-anhydro-L-galactose, with a few differences, in addition to a low ester sulphate residue.[1] Agarose and agaropectin are the key components of agar.[3] Noble agar is majorly used as both human and animal food supplement. In addition, it is also used in industries for the preparation of solid microbiological media.[2]
Select agar is majorly used as a component of culture media for molecular genetics related studies.

Application

For use as a component of culture media for molecular genetics.
Select agar has been used as a gelling agent to prepare dielectric phantoms along with polyvinylpyrrolidone (PVP) and salts.[4] It has also been used as a component of LB agar for the bacterial transformation screening.[5]
Select agar has been used in the preparation of Luria Bertani (LB) agar plates during DNA transformation process.[6]

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
MKCZ7006
MKCW2030
MKCX6210
MKCV7125
MKCV0693

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Construction and Cloning of Minigenes for in vivo Analysis of Potential Splice Mutations
Riedmayr LM, et al.
Bio-protocol, 8(4) (2018)
Agar
Food Gels, 1-51 (1990)
Agar and agarose biotechnological applications
Armisen R
Hydrobiologia, 29(4), 157-166 (1991)
Carlotta Ianniello et al.
Magnetic resonance in medicine, 80(1), 413-419 (2017-11-22)
To explore the use of polyvinylpyrrolidone (PVP) for simulated materials with tissue-equivalent dielectric properties. PVP and salt were used to control, respectively, relative permittivity and electrical conductivity in a collection of 63 samples with a range of solute concentrations. Their
Structure of the agarose constituent of agar-agar
Araki C, et al.
Bulletin of the Chemical Society of Japan, 29(4), 543-544 (1956)
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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