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Merck

A5431

Sigma-Aldrich

Agar

Sinónimos:

Agar goma, Agar-agar

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250 G
$470.000
1 KG
$1.760.000

$470.000


Fecha estimada de envío20 de mayo de 2025


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250 G
$470.000
1 KG
$1.760.000

About This Item

Fórmula lineal:
(C12H18O9)n
Número de CAS:
Número CE:
Número MDL:
Código UNSPSC:
50405901
NACRES:
NA.75

$470.000


Fecha estimada de envío20 de mayo de 2025


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Formulario

powder

Nivel de calidad

aplicaciones

food and beverages

cadena SMILES

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

Clave InChI

GYYDPBCUIJTIBM-DYOGSRDZSA-N

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Descripción general

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]

Aplicación

Noble agar has been used as a component of growth medium for High grade serous ovarian cancer (HGSOC) cell lines for soft agar colony assay.[4] It has also been used as a media component to culture anaerobic bacteria, Bacteroides thetaitaomicron[5]
Noble agar has been used to make agar gel plates that acts as a standard solid support material:
  • to culture tumor spheroids[6][7]
  • in lysoplate assay method of Osserman & Lawlor to measure lysozyme concentration in albumen or plasma[8][9]
  • as BG11 media component to culture Scenedesmus obtusiusculus strains[10]
Originally designed for use in Noble′s cyanide citrate agar.

Nota de preparación

Further purified from bacteriological agar with careful specific washings.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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Certificados de análisis (COA)

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Effect of restricted preen-gland access on maternal self maintenance and reproductive investment in mallards
Giraudeau M, et al.
PLoS ONE, 5(10), e13555-e13555 (2010)
Agar and agarose biotechnological applications
Armisen R
Hydrobiologia, 157-166 (1991)
Characterization of Scenedesmus obtusiusculus AT-UAM for high-energy molecules accumulation: deeper insight into biotechnological potential of strains of the same species
Toledo-Cervantes A, et al.
Biotechnology reports (Amsterdam, Netherlands), 17, 16-23 (2018)
Maternal investment of female mallards is influenced by male carotenoid-based coloration
Giraudeau M, et al.
Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character. Royal Society (Great Britain), 278(1706), 781-788 (2010)
Structure of the agarose constituent of agar-agar
Araki C, et al.
Bulletin of the Chemical Society of Japan, 29(4), 543-544 (1956)

Questions

1–2 of 2 Questions  
  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/449/386/product-dating-information-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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