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: C₂₁H₂₀BrN₃

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

InChI key: InChIKey=ZMMJGEGLRURXTF-UHFFFAOYSA-N

SMILES: C(C)[N+]=1C(=C2C(=C3C1C=C(N)C=C3)C=CC(N)=C2)C4=CC=CC=C4.[Br-]

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
• 2,7-DIAMINO-10-ETHYL-9-PHENYLPHENANTHRIDIUM BROMIDE
• 1,7-DIAMINO-10-ETHYL-9-PHENYLPHENANTHRIDINIUM BROMIDE
• CA NUMBERING: 3,8-DIAMINO-5-ETHYL-6-PHENYL-PHENANTHRIDINIUM BROMIDE
• 3,8-diamino-5-ethyl-6-phenyl-phenanthridiniubromide
• 3,8-DIAMINO-5-ETHYL-6-PHENYLPHENANTHRIDIUM BROMIDE
• 3,8-DIAMINO-6-ETHYL-5-PHENYL-PHENANTHRIDIUM BROMIDE
• 5-ETHYL-3,8-DIAMINO-6-PHENYL-PHENANTHRIDINIUM BROMIDE
• 2,7-Diamino-9-phenylphenanthridineethobromide
• ETHIDIUM BROMIDE
• Ethidium bromide(EB)
• Rd1572

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

Ref: 3B-E1363

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

Ref: 3B-E0370

Ethidium bromide soln., 0.625mg/ml

CAS: 1239-45-8

For visualization of DNA in gel electrophoresis

Formula: C₂₁H₂₀BrN₃

Color and Shape: Liquid, Dark red

Molecular weight: 394.32

Ref: 02-J62029

Ethidium bromide soln., 10mg/ml

CAS: 1239-45-8

For visualization of DNA in gel electrophoresis

Formula: C₂₁H₂₀BrN₃

Color and Shape: Dark red, Liquid

Molecular weight: 394.32

Ref: 02-J62282

Ethidium bromide, 95%

CAS: 1239-45-8

For DNA isolation and visualization This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part o

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

Ref: 02-L07482

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

CAS: 1239-45-8

Formula: C₂₁H₂₀BrN₃

Purity: 95%

Color and Shape: Solid

Molecular weight: 394.3076

Ref: IN-DA000L86

Ethidium bromide

CAS: 1239-45-8

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

Formula: C₂₁H₂₀BrN₃

Purity: 99.14% - >99.99%

Color and Shape: Dark Red Crystals From Alcohol Red-To-Brown Crystals

Molecular weight: 394.32

Ref: TM-T1220

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

CAS: 1239-45-8

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

Purity: 95%

Color and Shape: Liquid

Molecular weight: 394.31g/mol

Ref: 54-BI4663

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

Ref: 7W-GT1710

Ethidium bromide

CAS: 1239-45-8

Ethidium bromide

Purity: ≥98%

Molecular weight: 394.32g/mol

Ref: 54-BUP18019

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

Ref: 7W-GT9211

Ethidium bromide

CAS: 1239-45-8

Ethidium bromide is a natural compound that is used as a fluorescent dye. The dye binds to the nucleic acids of the cell, including DNA and RNA, which intercalate with the guanine residues in the DNA. The dye molecules fluoresce when excited by ultraviolet light. This property has been used for biochemical research on nucleic acids and for labeling cells in histological sections for electron microscopy. Ethidium bromide has also been used in rat hippocampal neurons to study nicotinic acetylcholine receptor function.

Formula: C₂₁H₂₀N₃·Br

Purity: Min. 98 Area-%

Color and Shape: Red Purple Powder

Molecular weight: 394.31 g/mol

Ref: 3D-FE10537

Ethidium bromide

CAS: 1239-45-8

Please enquire for more information about Ethidium bromide including the price, delivery time and more detailed product information at the technical inquiry form on this page

Formula: C₂₁H₂₀BrN₃

Purity: Min. 98 Area-%

Molecular weight: 394.32 g/mol

Ref: 3D-E-4000

Ethidium Bromide

Controlled Product

CAS: 1239-45-8

Applications 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. Antiprotozoal (Trypanosoma). Dyes and metabolites.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Waring, M.J., et al.: J. Mol. Biol., 13, 269 (1965), Probst, G.S., et al.: Environ. Mutagen., 3, 11 (1981),

Formula: C₂₁H₂₀BrN₃

Color and Shape: Neat

Molecular weight: 394.31

Ref: TR-E890700

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

Ref: SR-17220

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

Ref: SR-93079