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Merck

A4718

Sigma-Aldrich

Agarosa

for molecular biology

Sinónimos:

3,6-Anhydro-α-L-galacto-β-D-galactan

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About This Item

Número de CAS:
Número CE:
Número MDL:
Código UNSPSC:
41105317
ID de la sustancia en PubChem:
NACRES:
NA.25
En este momento no podemos mostrarle ni los precios ni la disponibilidad

origen biológico

algae (marine)

Nivel de calidad

grado

for molecular biology

Formulario

powder

técnicas

electrophoresis: suitable

ELECTROENDÓSMOSIS (EEO)

≤0.05

mp

≤75 °C (3% gel)

temperatura de transición

gel point ≤35 °C (3% gel)

actividad extraña

DNase, RNase, NICKase, none detected

temp. de almacenamiento

room temp

cadena SMILES

O1[C@H]([C@@H]([C@H]([C@H]([C@H]1CO)O)O[C@@H]4O[C@@H]5[C@H]([C@@H](OC5)[C@@H]4O)O[C@@H]6O[C@@H]([C@@H]([C@@H]([C@H]6O)O)O)CO)O)O[C@H]2[C@H]3OC[C@@H]2O[C@H]([C@H]3O)O

InChI

1S/C24H38O19/c25-1-5-9(27)11(29)12(30)22(38-5)41-17-8-4-36-20(17)15(33)24(40-8)43-18-10(28)6(2-26)39-23(14(18)32)42-16-7-3-35-19(16)13(31)21(34)37-7/h5-34H,1-4H2/t5-,6-,7+,8+,9+,10+,11+,12-,13+,14-,15+,16-,17-,18+,19+,20+,21-,22+,23+,24+/m1/s1

Clave InChI

MJQHZNBUODTQTK-WKGBVCLCSA-N

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Descripción general

Agarose is a polymer extracted from agar or agar-bearing marine algae. This purified linear galactan hydrocolloid comprises alternating co-polymers D-galactose and 3,6-anhydro-L-galactose units connected by α-(1→3) and β-(1→4) glycosidic bonds.[1] Agarose is highly biocompatible and possesses variable mechanical and diffusion properties.[2] Agarose can be used as a gelling agent, to separate nucleic acids electrophoretically.[3]

Aplicación

Agarose has been used in the preparation of microgel slides employed in lysis and electrophoresis.[4] It has also been used in the gel electrophoresis to separate restriction enzyme digested products in catechol-O-methyltransferase (COMT) genotyping[5]
Ideal for the separation of small DNA fragments (e.g., PCR products) differing in size by as little as 2% and compares to the resolution of DNA in polyacrylamide gels. High resolution agarose is also ideal for resolving amplification fragment length polymorphisms (AmpFLP), short tandem repeats (STR) and tri- and tetranucleotide repeats.
Low ethidium bromide and SYBR Green background staining

Nota de análisis

A continuación se presenta una lista de las propiedades asociadas a nuestras agarosas:
Contenido de sulfatos - utilizados como un indicador de pureza, ya que los sulfatos constituyen el principal grupo iónico presente.
Fuerza del gel - la fuerza que debe aplicarse a un gel para provocar su fractura.
Punto de gelificación - la temperatura a la cual una disolución acuosa de agarosa forma un gel cuando se enfría. Las disoluciones de agarosa exhiben histéresis en la transición de líquido a gel - es decir, su punto de gelificación no es el mismo que su temperatura de fusión.
Electroendosmosis (EEO) - movimiento de líquido a través del gel. En un gel de agarosa, los grupos aniónicos están pegados a la matriz y no pueden moverse, pero los contra-cationes disociables pueden migrar en la matriz hacia el cátodo, dando lugar a EEO. Dado que el movimiento electroforético de los biopolímeros suele ser en dirección al ánodo, la EEO puede alterar las separaciones debido a la convección interna.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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Questions

1–3 of 3 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

      Helpful?

  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

      Helpful?

  3. Is this agarose high-resolution, and suitable for PCR applications?

    1 answer
    1. The High Resolution Agarose, product number A4718, is an intermediate-melting agarose that offers approximately double the resolution capability compared to standard agarose. It is capable of resolving PCR products and DNA fragments ranging from 200-800 bp that differ in size by as little as 2%. This makes it ideal for separating small DNA fragments, such as PCR products, with very small size differences, offering a resolution comparable to that achieved with polyacrylamide gels.

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