Ethidium bromide

Catelog Number: A19-0010

Category: DNA Stains


Ethidium bromide is an intercalating reagent that is used for double-stranded DNA and RNA in 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 ug/ml). Ethidium bromide acts as an inhibitor of DNA polymerase.

Chemical Information
Catelog Number: A19-0010
Product Name: Ethidium bromide
CAS Number: 1239-45-8
Molecular Formula: C21H20BrN3
Molecular Weight: 394.31
Synonyms: Homidium bromide; Dromilac; EtBr; 3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide
Additional Information
InChI: 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
CanonicalSMILES: CC[N+]1=C2C=C(C=CC2=C3C=CC(=CC3=C1C4=CC=CC=C4)N)N.[Br-]

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