Ethidium bromide, GR 99%

Name: Ethidium bromide, GR 99%
Brand: Vaqora Chemicals
SKU: VQ-003329

About Ethidium bromide, GR 99%

Vaqora Chemicals supplies Ethidium bromide in AR / Biochemistry grade, a molecular biology reagent registered under CAS number 1239-45-8 with a typical assay of 99%. With the molecular formula C21H20BrN3, it has a molar mass of 394.3 g/mol. The IUPAC name is 5-ethyl-6-phenylphenanthridin-5-ium-3,8-diamine bromide. Common synonyms include Homidium bromide and EtBr.

In its supplied form it is a red to very dark red and purple to very dark purple powder. Literature values give a melting point of 236-240 °C (and decomposition 260 - 262 °C). Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span electrophoresis, DNA/RNA workflows, protein analysis and pharmaceutical synthesis. It is used across academic and industrial research and diagnostics and biotechnology.

Available in 100 mg, 250 mg, 1 g and 5 g packs, Ethidium bromide is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Electrophoresis
DNA/RNA workflows
Protein analysis
Pharmaceutical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Ethidium bromide, GR 99%
Catalogue No.	VQ-003329
CAS Number	1239-45-8
IUPAC name	5-ethyl-6-phenylphenanthridin-5-ium-3,8-diamine bromide
Molecular formula	C₂₁H₂₀BrN₃
Molecular weight	394.3 g/mol
Exact mass	393.0841
Grade	AR / Biochemistry
Purity / assay	99%
HSN code	29339900
InChIKey	ZMMJGEGLRURXTF-UHFFFAOYSA-N
SMILES	CC[N+]1=C2C=C(C=CC2=C3C=CC(=CC3=C1C4=CC=CC=C4)N)N.[Br-]
PubChem CID	14710

Physical properties
Physical form	Powder
Appearance	Red to very dark red and purple to very dark purple powder
Melting point	236-240 °C (and decomposition 260 - 262 °C)
H-bond donors / acceptors	2 / 3
TPSA	55.9 Å²
UN number	UN 2811
Synonyms	2,7-Diamino-10-ethyl-6-phenylphenanthridinium bromide, 2,7-Diamino-10-ethyl-9-phenylphenanthridinium bromide, 3,8-Diamino-1-ethyl-6-phenylphenantridinium bromide, 5-Ethyl-6-phenyl-phenanthridine-3,8-diamine bromide, Homidium bromide, EtBr, 3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide, Ethydium bromide, Bromure d'homidium, Bromuro de homidio, Homidii bromidum, 2,7-Diamino-9-phenyl-10-ethylphenanthridinium bromide

Safety & hazard information (GHS)

Toxic

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H330Fatal if inhaled
H341Suspected of causing genetic defects

Precautionary statements: P203, P260, P264, P270, P271, P280, P284, P301 + P317, P304 + P340, P316, P318, P320, P330, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1239-45-8

Molecular Biology

Ethidium bromide, for molecular biology, 99%

CAS: 1239-45-8
Formula: C₂₁H₂₀BrN₃
MW: 394.3 g/mol

VQ-003328

Ethidium bromide, solution ~1% in water

CAS: 1239-45-8
Formula: C₂₁H₂₀BrN₃
MW: 394.3 g/mol

VQ-000568

Frequently asked questions

What is the CAS number of Ethidium bromide, GR 99%?

The CAS Registry Number of Ethidium bromide, GR 99% is 1239-45-8. It is also known as 2,7-Diamino-10-ethyl-6-phenylphenanthridinium bromide, 2,7-Diamino-10-ethyl-9-phenylphenanthridinium bromide, 3,8-Diamino-1-ethyl-6-phenylphenantridinium bromide.

What is the molecular formula and molecular weight of Ethidium bromide, GR 99%?

Ethidium bromide, GR 99% has the molecular formula C21H20BrN3 and a molecular weight of 394.3 g/mol. Its IUPAC name is 5-ethyl-6-phenylphenanthridin-5-ium-3,8-diamine bromide.

Which grade and pack sizes of Ethidium bromide, GR 99% can I order?

We supply Ethidium bromide, GR 99% in AR / Biochemistry (99%) grade, in 100 mg, 250 mg, 1 g, 5 g, 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ethidium bromide, GR 99%?

Yes. Every lot of Ethidium bromide, GR 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Ethidium bromide, GR 99% be shipped internationally?

Yes. Ethidium bromide, GR 99% is classified as hazardous (UN 2811), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.