ATTO 620

ATTO 620 belongs to a new generation of fluorescent labels for the red spectral region.

Optical properties

λ _abs = 620 nm
ε _max = 1.2×10⁵ M ^-1 cm ^-1
λ _fl = 642 nm
n _fl = 50 %
τ _fl = 2.9 ns
CF ₂₆₀ = ε ₂₆₀ /ε _max = 0.04
CF ₂₈₀ = ε ₂₈₀ / ε _max = 0.06

ATTO 620 belongs to a new generation of fluorescent labels for the red spectral region. Characteristic features of the label are strong absorption, temperature dependent fluorescence, and high thermal and photo-stability.

In common with most ATTO-TEC-labels, absorption and fluorescence are independent of pH, at least in the range of pH 2 to 11, used in typical applications. ATTO 620 is a cationic dye. After coupling to a substrate the label carries a net electrical charge of +1

The label is moderately hydrophilic. Its fluorescence is excited most efficiently in the range 600 - 630 nm.

ATTO-TEC is a wholly owned subsidiary of Leica Microsystems

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Popular Configurations

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Modification

Unit of measure

ATTO 620 Biotin Fluorescent Label 1 mg

Product No. AD-620-71

ATTO 620 belongs to a new generation of fluorescent labels for the red spectral region.

"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"

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ATTO 620 Biotin Fluorescent Label 5 mg

Product No. AD-620-75

ATTO 620 belongs to a new generation of fluorescent labels for the red spectral region.

"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"

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ATTO 620 Carboxy Fluorescent Label 1 mg

Product No. AD-620-21

ATTO 620 belongs to a new generation of fluorescent labels for the red spectral region.

"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"

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ATTO 620 Carboxy Fluorescent Label 5 mg

Product No. AD-620-25

ATTO 620 belongs to a new generation of fluorescent labels for the red spectral region.

"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"

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ATTO 620 DPPE Labeled Phospholipid 1 mg

Product No. AD-620-151

ATTO-Dye Labeled Phospholipids

In recent years the investigation of biological membranes, e.g. intracellular membranes of live cells, plasma membranes etc., has become a major subject of interest. As a result there is a growing demand for fluorescent dye-labeled lipids, in particular glycero-phospholipids, to be incorporated in biological membranes. ATTO offers a variety of glycero-phospholipids, carrying one or two fatty acid chains (lipophilic groups) and a phosphate ester residue (hydrophilic group).

ATTO-dye fluorescent phospholipids are labeled at the hydrophilic head group. After incorporation in, e.g., a plasma membrane (phospholipid bilayer) the fluorophore is located at the water/lipid interface of the membrane.

"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"