Eosin-5-isothiocyanate

• Description:

  Eosin-5-isothiocyanate is a good photosensitizer and can be used to selectively label amines. It has a quantum yield of 0.57 for singlet oxygen generation, which makes it useful for photoconversion of electron-rich materials such as diaminobenzidine (DAB) or fluorescent dyes into highly electron-dense materials for high resolution electron microscopy studies. Additionally, eosin is a good fluorescence acceptor for fluorescein (FAM), dansyl and coumarin dyes in fluorescence resonance energy transfer (FRET).

  • lamba;_Ex/ lamba; _Em (pH 9) = 521/544 nm
  • epsilon; = 95,000
  • Orange red solid soluble in DMF or DMSO
  • Store at -20°C and protect from light
  • C₂₁H₇Br₄NO₅S
  • MW: 704.96

• UNSPSC:

  41116105

• UNSPSC Description:

  Chemistry reagents or solutions

• Source:

  Synthetic

• Storage Conditions:

  -35°C; Store with desiccant; Protect from light

• Shelf Life:

  12 months