ATTO 665
ATTO 665 (Ex-Max 663 nm/Em-Max 684 nm)
ATTO 665 from ATTO-Tec Gmbh has an excitation peak at 663 nm and an emission peak at 684 nm.
Excitation & emission spectra
Key facts
- Excitation maximum
- 663 nm
- Emission maximum
- 684 nm
- Optimal laser line
- 628-640
- Optimal filter
- 695/40
- Relative brightness
- 2 of 5
- Extinction coefficient
- 160000
- Quantum yield
- 0.6
- Molecular weight
- 748
ATTO 665 has an excitation maximum at 663 nm and an emission maximum at 684 nm, a Stokes shift of 21 nm. Its extinction coefficient is 160000 M⁻¹cm⁻¹. It is optimally excited by the 628-640 laser line.
Frequently asked questions
- What is ATTO 665?
- ATTO 665 from ATTO-Tec Gmbh has an excitation peak at 663 nm and an emission peak at 684 nm.
- What laser excites ATTO 665?
- ATTO 665 is optimally excited by the 628-640 laser line. Its excitation maximum is 663 nm.
- What filter should I use to detect ATTO 665?
- A 695/40 filter captures the peak of the ATTO 665 emission near 684 nm with minimal spillover.
- How bright is ATTO 665?
- ATTO 665 has a relative brightness of 2 out of 5 (quantum yield 0.6).