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Agar

Name: Agar
Brand: SIGMA

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

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:

NA.28

MDL number:

MFCD00081288

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Properties

biological source

algae (Rhodophyceae)

Quality Segment

200

form

granular

technique(s)

cell culture | plant: suitable

mp

83-89 °C

transition temp

transition temp 32-39 °C

suitability

microbiology tested

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

Description

General description

Agar, also known as agar-agar, is one of the biochemical agents most used in microbiology field. It is obtained from red algae Rhodophyceae, is the most abundantly used gelling agent in culture media. Agar is polysaccharide complex, composed of 70% agarose and 30% agaropectin.

Application

Agar has been used:

to culture Staphylococcus aureus for phage infection studies[1]
as a supplement with NZCYM media for culturing Campylobacter coli strains for lysogeny screening[2]
as a basic media component to improve in vitro ovule and embryo culture methods of cross Chitalpa hybrids to facilitate the rescue of triploids
in the culture media for Bdellovibrio spp. and Micavibrio spp. strains to check their susceptibility towards a variety of select agents[3]

Other Notes

A purified agar from which the naturally occurring pigments, salts and miscellaneous matter has been reduced to a minimum.

Compare Similar Items

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1 of 1

This Item	A8678	A4550	05039
Sigma-Aldrich A6686 Agar	Sigma-Aldrich A8678 Agar	Sigma-Aldrich A4550 Agar	Millipore 05039 Agar
form granular	form powder	form powder	form powder
technique(s) cell culture \| plant: suitable	technique(s) cell culture \| plant: suitable	technique(s) cell culture \| plant: suitable	technique(s) -
biological source algae (Rhodophyceae)	biological source algae (Rhodophyceae)	biological source algae (Rhodophyceae)	biological source -
storage temp. room temp	storage temp. room temp	storage temp. room temp	storage temp. -
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 100
mp 83-89 °C	mp 80-90 °C (1.5% in water)	mp -	mp 85-95 °C

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Storage Class

11 - Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)

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Global Trade Item Number

SKU	GTIN
A6686-1KG	04061835442249
A6686-500G	04061833382738
A6686-100G	04061833382721

Questions

1–3 of 3 Questions

Anonymous

10 months ago

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

1 answer
1. Technical Support
  
  10 months ago
  
  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
  
  Helpful?
Anonymous

a year ago

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

1 answer
1. Technical Support
  
  a year ago
  
  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
  
  Helpful?
2 years ago

What is the purity of your agar A6686?

1 answer
1. Technical Support
  
  2 years ago
  
  The purity of this product is not determined.
  
  Helpful?

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