This product requires cold chain shipping. Ground and other economy services are not available.
Product Description
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.
Product Properties
Extinction coefficient
1,25×105 M-1 cm-1
Certificates（CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Find and download the COA for your product by matching the lot number on the packaging.
B2506179