01407

Atto 665 maleimide

BioReagent, suitable for fluorescence, ≥90% (coupling to thiols)

• NACRES: NA.32
• UNSPSC Code: 12352200

Properties

• product line: BioReagent
• assay: ≥90% (coupling to thiols)
• mol wt: M_w 845 g/mol
• manufacturer/tradename: ATTO-TEC GmbH
• fluorescence: λ_ex 663 nm; λ_em 684 nm in 0.1 M phosphate pH 7.0
• suitability: suitable for fluorescence
• storage temp.: −20°C

Description

General description

Atto 665 is a new fluorescent label closely related to Atto 647N. It shows extraordinary high fluorescence quantum yield, excellent thermal and photo-stability, outstanding ozone resistance, and very little triplet formation. Atto 665 is a cationic (charge ⁺¹). The dye is moderately hydrophilic. The maleimide of the dye is suitable for labeling sulfhydryl (thiol) groups of proteins, in particular. Cystein residues. Prepare labeling solution of maleimide-derivative immediately before use by dissolving the vial content in anhydrous and amine-free DMF or DMSO.

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Legal Information

This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable