Saltar al contenido
Merck

09-0615

Sigma-Aldrich

Ethidium bromide

≥95.0%

Sinónimos:

3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide, EtBr, Homidium bromide

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización


About This Item

Fórmula empírica (notación de Hill):
C21H20BrN3
Número de CAS:
Peso molecular:
394.31
Beilstein/REAXYS Number:
3642536
EC Number:
MDL number:
UNSPSC Code:
12161505
PubChem Substance ID:

assay

≥95.0%

availability

available only in Japan

mp

260-262 °C (dec.) (lit.)

SMILES string

[Br-].CC[n+]1c(-c2ccccc2)c3cc(N)ccc3c4ccc(N)cc14

InChI

1S/C21H19N3.BrH/c1-2-24-20-13-16(23)9-11-18(20)17-10-8-15(22)12-19(17)21(24)14-6-4-3-5-7-14;/h3-13,23H,2,22H2,1H3;1H

InChI key

ZMMJGEGLRURXTF-UHFFFAOYSA-N

¿Está buscando productos similares? Visita Guía de comparación de productos

Application

Ethidium bromide (EtBr) is the most commonly used nucleic acid stain for PAGE or agarose gel electrophoresis. The fluorescence of EtBr increases 21-fold upon binding to double-stranded RNA and 25-fold on binding double-stranded DNA so that destaining the background is not necessary with a low stain concentration (10 μg/ml). Ethidium bromide has been used in a number of fluorimetric assays for nucleic acids. It has been shown to bind to single-stranded DNA (although not as strongly) and triple-stranded DNA. Because of its ability to bind to DNA, EtBr is an inhibitor of DNA polymerase.

Frameshift mutagen which intercalates double-stranded DNA and RNA.

Biochem/physiol Actions

Ethidium bromide intercalates double-stranded DNA and RNA and acts as a frameshift mutagen. It can also be used in conjunction with acridine orange to differentiate between viable, apoptotic and necrotic cells.

Suitability

for biological purposes

Reconstitution

Para la coloración de un gel después de electroforesis diluya una muestra de la solución madre hasta 0,5 μg/ml con agua e incube el gel durante 15 a 30 min. La decoloración no suele ser necesaria, pero puede llevarse a cabo durante 15 minutos si es preciso disminuir el fondo. Las bandas de ADN pueden detectarse en una caja de luz UV (254 nm de longitud de onda). También puede incorporarse bromuro de etidio en el gel para que actúe como tampón (0,5 μg/ml) y visualizarse inmediatamente por electroforesis.

related product

Referencia del producto
Descripción
Precios

pictograms

Skull and crossbonesHealth hazard

signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 4 Oral - Muta. 2

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Bobo W Mok et al.
PloS one, 3(4), e1982-e1982 (2008-04-24)
Antigenic variation is a subtle process of fundamental importance to the survival of a microbial pathogen. In Plasmodium falciparum malaria, PfEMP1 is the major variable antigen and adhesin expressed at the surface of the infected erythrocyte, which is encoded for
Patrick Seitz et al.
PLoS genetics, 10(1), e1004066-e1004066 (2014-01-07)
The DNA uptake of naturally competent bacteria has been attributed to the action of DNA uptake machineries resembling type IV pilus complexes. However, the protein(s) for pulling the DNA across the outer membrane of Gram-negative bacteria remain speculative. Here we
Ulrich Braunschweig et al.
Genome research, 24(11), 1774-1786 (2014-09-27)
Alternative splicing (AS) of precursor RNAs is responsible for greatly expanding the regulatory and functional capacity of eukaryotic genomes. Of the different classes of AS, intron retention (IR) is the least well understood. In plants and unicellular eukaryotes, IR is
Alexandra C I Depelsenaire et al.
The Journal of investigative dermatology, 134(9), 2361-2370 (2014-04-10)
Vaccines delivered to the skin by microneedles-with and without adjuvants-have increased immunogenicity with lower doses than standard vaccine delivery techniques such as intramuscular or intradermal injection. However, the mechanisms underlying this skin-mediated "adjuvant" effect are not clear. Here, we show
Wenfang Peng et al.
Nucleic acids research, 43(1), 406-417 (2014-12-17)
CRISPR-Cas systems provide a small RNA-based mechanism to defend against invasive genetic elements in archaea and bacteria. To investigate the in vivo mechanism of RNA interference by two type III-B systems (Cmr-α and Cmr-β) in Sulfolobus islandicus, a genetic assay

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico