Agent Name

Homidium bromide

Alternative Name

Ethidium bromide

CAS Number

1239-45-8

Formula

C21-H20-N3.Br

Major Category

Nitrogen Compounds

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-5-ethyl-6-phenylphenanthridinium bromide; Bromure d'homidium [INN-French]; Bromuro de homidio [INN-Spanish]; Dromilac; Ethidium bromide; Ethydium bromide; Homidii bromidum [INN-Latin]; RD 1572; Phenanthridinium, 3,8-diamino-5-ethyl-6-phenyl-, bromide; [ChemIDplus] EtBr; [Sigma-Aldrich MSDS] UN2811

Category

Other Aromatics (Nitrogen)

Description

Dark red solid; [Merck Index] Red to brown solid; [ICSC] Dark red powder; [Sigma-Aldrich MSDS]

Sources/Uses

Used in the determination of nucleic acids and as an antimicrobial (Trypanosoma); [Merck Index]

Comments

A skin, eye, and respiratory tract irritant; [ICSC] May cause irritation; Toxic by ingestion; Highly toxic by inhalation; Mutagenic effects observed in vitro; [Sigma-Aldrich MSDS] See "Propidium iodide."

Exposure Assessment
Vapor Pressure

1.2E-12 mm Hg

Lethal Concentration

LC50 (rat) = 11,000-134,000 mg/m3/1hr

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Toxic solid, organic, n.o.s."

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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