ATTO 655 , CAS No.A664947

CAS: A664947 Cat. No.: A664947

Storage

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

Shipped In

Ice chest + Ice pads

Panoramica

Product Number	Product specifications	package		Product Number	Product specifications	package
A664947-1-500μg	Modification: tetrazine (MeTet) NEW	500μg		A664947-6-10nmol	Modification: phalloidin	10nmol
A664947-1-200μg	Modification: tetrazine (MeTet) NEW	200μg		A664947-7-5mg	Modification: biotin	5mg
A664947-2-5mg	Modification: alkyne	5mg		A664947-7-1mg	Modification: biotin	1mg
A664947-2-1mg	Modification: alkyne	1mg		A664947-8-5mg	Modification: streptavidin	5mg
A664947-3-5mg	Modification: iodoacetamide	5mg		A664947-8-1mg	Modification: streptavidin	1mg
A664947-3-1mg	Modification: iodoacetamide	1mg		A664947-9-5mg	Modification: maleimide	5mg
A664947-4-5mg	Modification: azide	5mg		A664947-9-1mg	Modification: maleimide	1mg
A664947-4-1mg	Modification: azide	1mg		A664947-10-5mg	Modification: NHS-ester	5mg
A664947-5-5mg	Modification: amine	5mg		A664947-10-1mg	Modification: NHS-ester	1mg
A664947-5-1mg	Modification: amine	1mg		A664947-11-5mg	Modification: free acid	5mg
A664947-6-20nmol	Modification: phalloidin	20nmol		A664947-11-1mg	Modification: free acid	1mg

Optical Properties

λabs	663nm
εmax	1.25×10⁵M⁻¹ cm⁻¹
λfl	680nm
ηfl	30%
τfl	1.8ns
CF₂₆₀=ε₂₆₀/εmax	0.24
CF₂₈₀=ε₂₈₀/εmax	0.08

ATTO 655 belongs together with ATTO 680 und ATTO 700 to a new generation of fluorescent labels. Characteristic features of the label are strong absorption, high fluorescence quantum yield, high thermal and photo-stability, exceptionally high stability towards atmospheric ozone , and very good water solubility. Thus ATTO 655 is highly suitable for single-molecule detection applications and high-resolution microscopy such as PALM, dSTORM, STED etc. Additionally the dye highly qualifies to be applied in flow cytometry (FACS), fluorescence in-situ hybridization (FISH) and many more. ATTO 655 is a zwitterionic dye. After coupling to a substrate the dye moiety is electrically neutral. ATTO 655 is a strong electron acceptor. Its fluorescence is efficiently quenched by electron donors like guanine, tryptophan, etc. The fluorescence is excited most efficiently in the range 640 - 660 nm. A suitable excitation source is the 647 nm line of the Krypton-Ion laser or a diode-laser emitting at 650 nm.

Specifications

Condizioni di conservazione di stoccaggio

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

Spedito in

Ice chest + Ice pads

Questo prodotto richiede spedizione a catena fredda. I servizi di terra e altri servizi economici non sono disponibili.

Proprietà del prodotto

• Coefficiente di estinzione: 1,25×105 M-1 cm-1

Domande frequenti

How should this product be stored?

Store at ?20 °C, protected from light, desiccated. Keep the container tightly closed with desiccant — the material is moisture-sensitive.

How is this product shipped?

This product ships in an insulated container with ice pads. Unpack on arrival and transfer it to the storage condition stated above.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is A664947.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.