CAS 1239-45-8: Ethidium bromide

Description: Ethidium bromide is a fluorescent intercalating agent commonly used in molecular biology for the detection of nucleic acids in techniques such as gel electrophoresis. It has a molecular formula of C21H20BrN3 and a molecular weight of approximately 394.31 g/mol. Ethidium bromide appears as an orange-red powder and exhibits strong fluorescence when bound to DNA, emitting light in the orange spectrum upon exposure to ultraviolet (UV) light. Its mechanism of action involves intercalating between the base pairs of DNA, which allows for visualization of nucleic acids in agarose gels. While effective for laboratory applications, ethidium bromide is considered hazardous due to its mutagenic properties and potential health risks upon exposure, necessitating careful handling and disposal. It is soluble in water and organic solvents, making it versatile for various experimental setups. Due to its toxicity, safer alternatives are often sought in modern laboratories, but ethidium bromide remains a staple in many traditional protocols.

Formula: C₂₁H₂₀N₃·Br

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

InChI key: InChIKey=ZMMJGEGLRURXTF-UHFFFAOYSA-N

SMILES: [Br-].NC=1C=CC=2C=3C=CC(N)=CC3[N+](=C(C=4C=CC=CC4)C2C1)CC

Synonyms:

• 2,7-Diamino-10-Ethyl-9-Phenylphenanthridinium Bromide
• 2,7-Diamino-9-phenyl-10-ethylphenanthridinium bromide
• 2,7-Diamino-9-phenylphenanthridine ethobromide
• 3,8-Diamino-1-Ethyl-6-Phenylphenantridinium Bromide
• 3,8-Diamino-1-ethyl-6-phenylphenantridiniumbromid
• 3,8-Diamino-5-Ethyl-6-Phenylphenanthridinium Bromide
• 3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide~Homidium bromide
• 3,8-Diamino-5-ethyl-6-phenylphenanthridiniumbromid
• 3,8-Diammino-5-etil-6-bromuro di fenil fenantridinina
• 3,8-diamino-5-éthyl-6-phénylphénane thridinium, bromure de
• Bromure De 3,8-Diamino-1-Ethyl-6-Phenylphenantridinium
• Bromuro De 3,8-Diamino-1-Etil-6-Fenilfenantridinio
• Bromuro de 3,8-diamino-5-etil-6-fenilfenantridinio
• Bromuro de etidio
• Bromuro di etidio
• Dromilac
• EtBr
• Ethidium bromide solution
• Ethidiumbromid
• Etidio bromuro (EtBr)
• Éthidium, bromure d’
• Homidium bromide
• Phenanthridinium, 3,8-diamino-5-ethyl-6-phenyl-, bromide
• Phenanthridinium, 3,8-diamino-5-ethyl-6-phenyl-, bromide (1:1)
• 臭化エチジウム

Ethidium Bromide (0.5mg/mL in Water) (in Dropper Bottle) [for Electrophoresis]

CAS: 1239-45-8

• Formula: C₂₁H₂₀BrN₃
• Color and Shape: Light yellow to Yellow to Orange clear liquid
• Molecular weight: 394.32

Ethidium bromide soln., 10mg/ml

CAS: 1239-45-8

Ethidium bromide has been used in a number of fluorimetric assays for nucleic acids.1,2,3 It …

• Formula: C₂₁H₂₀BrN₃
• Color and Shape: Dark red, Liquid
• Molecular weight: 394.32

Ethidium bromide soln., 0.625mg/ml

CAS: 1239-45-8

For visualization of DNA in gel electrophoresis This Thermo Scientific Chemicals brand product was originally …

• Formula: C₂₁H₂₀BrN₃
• Color and Shape: Liquid, Dark red
• Molecular weight: 394.32

Ethidium bromide, 95%

CAS: 1239-45-8

For DNA isolation and visualization This Thermo Scientific Chemicals brand product was originally part of …

• Formula: C₂₁H₂₀BrN₃
• Purity: 95%
• Color and Shape: Red to dark red to purple to dark purple, Crystals or powder or crystalline powder
• Molecular weight: 394.32

Ethidium bromide

CAS: 1239-45-8

Ethidium bromide: trypanocidal, potential antiviral, binds to nucleic acids, inhibits acetylcholine receptors, fluorescent; used in …

• Formula: C₂₁H₂₀BrN₃
• Purity: 100% - 99.14%
• Color and Shape: Dark Red Crystals From Alcohol Red-To-Brown Crystals
• Molecular weight: 394.32

Phenanthridinium, 3,8-diamino-5-ethyl-6-phenyl-, bromide (1:1)

CAS: 1239-45-8

• Formula: C₂₁H₂₀BrN₃
• Purity: 95%
• Color and Shape: Liquid
• Molecular weight: 394.3076

2,7-Diamino-10-ethyl-9-phenylphenanthridinium bromide, 1% aqueous solution

CAS: 1239-45-8

• Purity: 95+%
• Color and Shape: Liquid
• Molecular weight: 394.31g/mol

Ethidium bromide, 10mg/ml in water

CAS: 1239-45-8

• Formula: C₂₁H₂₀BrN₃
• Purity: ≥ 95.0%
• Color and Shape: Red to dark red liquid
• Molecular weight: 394.31

Ethidium bromide

CAS: 1239-45-8

• Purity: 99.13%
• Molecular weight: 394.32g/mol

Ethidium bromide

CAS: 1239-45-8

• Formula: C₂₁H₂₀BrN₃
• Purity: ≥ 95.0% (anhydrous basis)
• Color and Shape: Red to dark red or purple crystalline powder
• Molecular weight: 394.31

Ethidium bromide, 95%, pure

CAS: 1239-45-8

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₂₁H₂₀BrN₃
• Purity: 95%
• Color and Shape: Red to dark purple, Crystalline powder
• Molecular weight: 394.32

Ethidium bromide

CAS: 1239-45-8

Please enquire for more information about Ethidium bromide including the price, delivery time and more …

• Formula: C₂₁H₂₀N₃·Br
• Purity: Min. 98 Area-%
• Color and Shape: Red Purple Powder
• Molecular weight: 394.31 g/mol

Ethidium bromide

CAS: 1239-45-8

Please enquire for more information about Ethidium bromide including the price, delivery time and more …

• Formula: C₂₁H₂₀BrN₃
• Purity: Min. 98 Area-%
• Molecular weight: 394.32 g/mol

Ethidium Bromide

CAS: 1239-45-8

• Formula: C₂₁H₂₀BrN₃
• Purity: >95.0%(T)(HPLC)
• Color and Shape: Orange to Brown to Dark purple powder to crystal
• Molecular weight: 394.32

Ethidium Bromide

CAS: 1239-45-8

Applications Ethidium bromide (EtBr) is the most commonly used nucleic acid stain for PAGE or …

• Formula: C₂₁H₂₀BrN₃
• Color and Shape: Neat
• Molecular weight: 394.31

Ethidium Bromide for molecular biology, 95%

CAS: 1239-45-8

• Formula: C₂₁H₂₀N₃Br
• Purity: min.95%
• Color and Shape: Red, Crystalline Powder, Clear, Red
• Molecular weight: 394.32

Ethidium Bromide extrapure, 95%

CAS: 1239-45-8

• Formula: C₂₁H₂₀N₃Br
• Purity: min.95%
• Color and Shape: Red, Crystalline Powder, Clear, Red
• Molecular weight: 394.32