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Product Name: SeTau-500-NHS
Product Number:
K9-3162 Target Group:
NH2Excitation Light Sources:
Medium 1:
PB 7.4λAb max. [nm]:
502ε [M–1 cm–1]:
59600λEm max. [nm]:
567QY [%]:
43FLT [ns]:
2.8Specs Sheet:
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- Perfectly suited for excitation with the 480-nm or 503-nm diode lasers or the 488-nm Ar-ion laser
- Unprecedentedly large Stokes’ shift of >60 nm (larger than for Alexa Fluor 555 ex/em:553/568, (15 nm) or Cy3 ex/em:550/565 (15 nm), Auora 555-NHS (553/567) (14 nm)!
- Large Stokes shift enables the use of wider filter sets like 585/15, 535 LP, 560/40, 535 LP, helping to increase the sensitivity of the measurements
- Very high quantum yield of close to 60% in PBS 7.4! Much higher than Cy3 (QY=0.15) or Alexa 555-NHS (QY. = 0.1)2!
- 10-times longer fluorescence lifetime compared to Cy3 or Alexa-555 in PBS 7.4.
- Considerably higher photostability compared to fluorescein or Cy3 (see below)
- High chemical stability against oxidation with peroxides or other oxygen species!
