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ATTO 390
ATTO 390 (Ex-Max 390 nm/Em-Max 479 nm)
ATTO 390 from ATTO-TEC has an excitation peak at 390 nm and an emission peak at 448 nm. It is a novel fluorescent label with a coumarin structure. Characteristic features of the label are high fluorescence quantum yield, large Stokes-shift, good photo-stability, and low molecular weight.
Excitation & emission spectra
Key facts
- Excitation maximum
- 390 nm
- Emission maximum
- 479 nm
- Optimal laser line
- 405
- Optimal filter
- 450/50
- Relative brightness
- 3 of 5
- Extinction coefficient
- 24000
- Quantum yield
- 0.9
- Fluorescence lifetime
- 5.0 ns
- Molecular weight
- 368
- Commercial antibodies
- 1.7k from 8 suppliers
ATTO 390 has an excitation maximum at 390 nm and an emission maximum at 479 nm, a Stokes shift of 89 nm. Its extinction coefficient is 24000 M⁻¹cm⁻¹. It is optimally excited by the 405 laser line.
Frequently asked questions
- What is ATTO 390?
- ATTO 390 from ATTO-TEC has an excitation peak at 390 nm and an emission peak at 448 nm. It is a novel fluorescent label with a coumarin structure. Characteristic features of the label are high fluorescence quantum yield, large Stokes-shift, good photo-stability, and low molecular weight.
- What laser excites ATTO 390?
- ATTO 390 is optimally excited by the 405 laser line. Its excitation maximum is 390 nm.
- What filter should I use to detect ATTO 390?
- A 450/50 filter captures the peak of the ATTO 390 emission near 479 nm with minimal spillover.
- How bright is ATTO 390?
- ATTO 390 has a relative brightness of 3 out of 5 (quantum yield 0.9).
- How many antibodies are available conjugated to ATTO 390?
- FluoroFinder tracks 1677 commercially available ATTO 390 conjugates, searchable by target, clone, host and application.