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Home/Compounds/Research Reagent/Propidium iodide
C27H34I2N4
668.4 g/mol
Research ReagentWarning

Propidium iodide

CAS25535-16-4EC247-081-0
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound

Propidium iodide is a fluorescent intercalating dye commonly used in laboratory research to stain nucleic acids. It binds to DNA by intercalating between the bases with little sequence preference and exhibits red fluorescence upon excitation.

fluorescent staining of nucleic acids in cellsDNA intercalation for fluorescence-based assays

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Referencesame scaffold

Homidium chloride

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Referencesame scaffold

Dimidium bromide

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research compound

Safety Reference

Harmful
Harmful
Health Hazard
Health Hazard
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects
Identifiers
IUPAC Name

3-(3,8-diamino-6-phenylphenanthridin-5-ium-5-yl)propyl-diethyl-methylazanium diiodide

InChIKey

XJMOSONTPMZWPB-UHFFFAOYSA-M

SMILES

CC[N+](C)(CC)CCC[N+]1=C2C=C(C=CC2=C3C=CC(=CC3=C1C4=CC=CC=C4)N)N.[I-].[I-]

Synonyms (18)
  • Diiodide, Propidium
  • Iodide, Propidium
  • Propidium diiodide
  • Propidium iodide (PI)
  • propidium iodide