Structure and Spectra of Di-2-ANEPEQ

Chemical structure of voltage-sensitive dye Di-4-AN(F)EP(F)PTEA from Potentiometric Probes
Spectra in MLVs of voltage-sensitive dye Di-4-AN(F)EP(F)PTEA from Potentiometric Probes
  • Absorbance, emission peaks in multilamellar lipid vesicles (MLVs) shown above: 477.5 nm, 624 nm.
  • Absorbance, emission peaks in ethanol: 532 nm, 748 nm.
  • Recommended excitation range: 510-540 nm (click here for more on how to choose the wavelength).
  • MW: 549.40 g/mol

Unique Packaging for Convenience and Reliability



  • Pre-dried aliquots (solid, solvent removed)
  • Quantity: 100 nmol / tube (55 μg)
  • 2.0-mL free standing polypropylene tubes
    • Sealed cap
    • Individually labeled
    • Bagged with desiccant

Order information



  • See table for pricing
  • Contact for a quote
  • Minimum order: 20. Price break: 100 tubes
  • Shipping not included
  • Other quantities and formats available upon request
  • Inquire about “Academic Discount” for academic researchers
Di-2-ANEPEQ – 100 nmol Pre-dried Aliquot Pricing 
Product Number Order Quantity (tubes) Price / Tube Order Total ($US)
11140 20 $7.50 $150
11140 100 $6.50 $650
Di-2-ANEPEQ, Bulk Pricing
Product Number  Order Quantity (mg) Price / mg Order Total ($US)
11145 1 $100 $100
11146 5 $80 $400



  1. Antic, S., and D. Zecevic. 1995. Optical signals from neurons with internally applied voltage-sensitive dyes. Journal of Neuroscience. Pubmed
  2. Zecevic, D. 1996. Multiple spike-initiation zones in single neurons revealed by voltage-sensitive dyes. Nature. Pubmed
  3. Antic, S., J. P. Wuskell, L. Loew, and D. Zecevic. 2000. Functional profile of the giant metacerebral neuron of Helix aspersa: temporal and spatial dynamics of electrical activity in situ. J Physiol 527 Pt. Pubmed
  4. Foust, A., M. Popovic, D. Zecevic, and D. A. McCormick. 2010. Action Potentials Initiate in the Axon Initial Segment and Propagate through Axon Collaterals Reliably in Cerebellar Purkinje Neurons. The Journal of Neuroscience. Pubmed
  5. Zhou, W. L., P. Yan, J. P. Wuskell, L. M. Loew, and S. D. Antic. 2007. Intracellular long-wavelength voltage-sensitive dyes for studying the dynamics of action potentials in axons and thin dendrites. J Neurosci Methods. Pubmed