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  • Our new SeTau-670 squaraine rotaxane: ~ 2 times brighter than Cy5.5 or Alexa 680

Our new SeTau-670 squaraine rotaxane: ~ 2 times brighter than Cy5.5 or Alexa 680

SeTau 670-NHS  (Φ = 0.36,  ε = 275,000 and Φ. ε  = 99,000) with  the same absorption and emission as Cy5.5 is about 2 times brighter as Cy5.5 ((Φ. ε  = 44,850) and 1.5 times brighter than Alexa 680 (Φ = 0.36,  ε = 183,000 and Φ. ε  = 65,880), and exhibits a lower quenching tendency when labeled to biomolecules. Exc./Em. max of IgG-conjugates: 672/692 nm.

Excitation Light Sources Characteristics
Product Number
(Specs Sheet)
Product Name
(Product Info)
Target Group 380 405 436 488 532 594 635 650 680 700 750 780 Medium λ abs
[nm]
ε
[M –1
cm–1]
λ em
[nm]
QY
[%]
FLT
[ns]
Buy
                   
K9-4119
K9-4119 new
SeTau-665-NHS
SeTau-665-NHS
NH2 PB 7.4 664 160000 712 53 3.1
K9-4148
K9-4148
SeTau-647-Maleimide
SeTau-647-Maleimide
SH PB 7.4 648 200000 692 45 3.2
K9-4149
K9-4149
SeTau-647-NHS
SeTau-647-NHS
NH2 PB 7.4 649 200000 695 61 3.2
K9-4169
K9-4169 new
SeTau-670-NHS
SeTau-670-NHS
NH2 PB 7.4 673 275000 694 36 1.6

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