ATTO 647 , CAS No.A665026

CAS: A665026 Cat. No.: A665026

Storage

Protected from light,Store at -20°C,Desiccated

Shipped In

Ice chest + Ice pads

Overview

Product Number	Product specifications	package
A665026-1-20nmol	Modification: phalloidin	20nmol
A665026-1-10nmol	Modification: phalloidin	10nmol
A665026-2-5mg	Modification: biotin	5mg
A665026-2-1mg	Modification: biotin	1mg
A665026-3-5mg	Modification: streptavidin	5mg
A665026-3-1mg	Modification: streptavidin	1mg
A665026-4-5mg	Modification: maleimide	5mg
A665026-4-1mg	Modification: maleimide	1mg
A665026-5-5mg	Modification: NHS-ester	5mg
A665026-5-1mg	Modification: NHS-ester	1mg
A665026-6-5mg	Modification: free acid	5mg
A665026-6-1mg	Modification: free acid	1mg

Optical Properties

λabs	647nm
εmax	1.2×10⁵M⁻¹ cm⁻¹
λfl	667nm
ηfl	20%
τfl	2.4ns
CF₂₆₀=ε₂₆₀/εmax	0.08
CF₂₈₀=ε₂₈₀/εmax	0.04

ATTO 647 belongs to a new generation of fluorescent labels for the red spectral region. Characteristic features of the label are strong absorption, high fluorescence quantum yield, high photo-stability, and good water solubility. ATTO 647 is a zwitterionic dye with a net electrical charge of zero. The dye is stable at physiological pH-values and in buffers up to pH 8. However, it slowly degrades at higher pH. The dye is very hydrophilic. The fluorescence is excited most efficiently in the range 615 - 660 nm. A suitable excitation source for ATTO 647 is, next to the He:Ne laser (633nm), the 647 nm line of the Krypton-Ion laser or a diode-laser emitting at 650 nm.

Specifications

Storage

Protected from light, Store at -20°C, Desiccated

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Product Properties

• Extinction coefficient: 1,2×105 M-1 cm-1