STAR FLUOR 645 NHS ester


STAR FLUOR 645 NHS ester


STAR FLUOR 645 NHS ester is the reagent of choice in the far red region and is ideally excited by the 633nm laser line. High brightness and photostability provide stable signal output in any fluorescent detection assay.

Star fluor 645 NHS ester belongs to the cyanine class of dyes with superior photophysical properties and is as bright as Alexa Fluor 647.

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Properties for STAR FLUOR 645 NHS ester

Features As bright as Alexa Fluor 647
High water solubility and pH insensitive
The most popular tool in any multi-color application.
λabs (Ethanol) 648 nm (abs)
λem (Ethanol) 667 nm (em)
Stokes shift 19 nm
ε (Ethanol) 250,000 M-1cm-1
Φ (Ethanol) 0.28
Quencher QSY21
Solubility Water, Methanol, DMSO, DMF
Laser excitation Krypton-Argon 647 nm - Diode 635 nm red
Spectrally comparable dyes Alexa Fluor® 647
AllophycocyaninBODIPY® 650/665
Promo Fluor®647

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