Phenylethynylpyrene (PEP) fluorophore is a polyaromatic hydrocarbon label with high sensitivity to microenvironment. Similarly to pyrene, PEP dye readily forms excimers. However, PEP fluorescence is more red-shifted
PEP can be used as microenvironment probe, and as a label for assays based on excimer formation.
This reagent contains triethyleneglycol linker to facilitate dissolution of non-polar PEP dye in organo-aqueous labeling reaction mixtures. With this azide, and Click Chemistry, it is easy to turn any molecule bearing alkyne into PEP-labeled probe.
General properties
Appearance: | off white / yellowish solid |
Molecular weight: | 544.64 |
Molecular formula: | C34H32N4O3 |
Solubility: | soluble in dichloromethane, chloroform, moderately soluble in DMSO, DMF, acetonitrile |
Quality control: | NMR 1H (95%) |
Storage conditions: | Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. |
Spectral properties
Excitation maximum, nm: | 293; 362; 384 |
Emission maximum, nm: | 389 |