Product Name: Square-680-NHS

Product Number:

K8-1357

Target Group:

NH₂

Excitation Light Sources:

Medium 1:

MeOH

λ_Ab max. [nm]:

668

ε [M^–1cm^–1]:

208000

λ_Em max. [nm]:

690

QY [%]:

Medium 2:

CHCl₃

λ_Ab max. [nm]:

683

ε [M^–1cm^–1]:

202000

λ_Em max. [nm]:

701

QY [%]:

Medium 3:

PB 7.4

λ_Ab max. [nm]:

654

ε [M^–1cm^–1]:

138000

λ_Em max. [nm]:

670

QY [%]:

Specs Sheet:

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Description

Hydrophobic, amine-reactive fluorescent label containing one reactive NHS-ester group.

The dye is excitable with both UV-blue and red-NIR light sources and is perfectly suited for excitation with 380-nm, 404-nm, 635-nm, and 670-nm LEDs and diode lasers
Sensitive; high extinction coefficients and quantum yields of protein conjugates
Quantum yields increase upon covalent association with biomolecules
pH-insensitive between pH 3 and pH 10
High photostability, e.g., compared to fluorescein or Cy5^TM
Low molecular weight — Square dyes do not add substantial mass to the conjugates
Ideal for non-radioactive labeling of amino-modified lipids