41061

Atto 610 maleimide

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

• Empirical Formula (Hill Notation): C₃₁H₃₇ClN₄O₇
• Molecular Weight: 613.10
• MDL number: MFCD04040681
• UNSPSC Code: 12352200
• PubChem Substance ID: 57650025
• NACRES: NA.32

Properties

• product line: BioReagent
• Assay: ≥90% (coupling to thiols)
• form: powder
• manufacturer/tradename: ATTO-TEC GmbH
• fluorescence: λ_ex 610 nm; λ_em 637 nm in 0.1 M phosphate pH 7.0, 2-mercaptoethanol
• suitability: suitable for fluorescence
• storage temp.: −20°C
• SMILES string: [O-]Cl(=O)(=O)=O.C\[N+](C)=C1/C=CC2=Cc3cc4CCCN(CCCC(=O)NCCN5C(=O)C=CC5=O)c4cc3C(C)(C)C2=C1
• InChI: 1S/C31H36N4O3.ClHO4/c1-31(2)25-19-24(33(3)4)10-9-21(25)17-23-18-22-7-5-14-34(27(22)20-26(23)31)15-6-8-28(36)32-13-16-35-29(37)11-12-30(35)38;2-1(3,4)5/h9-12,17-20H,5-8,13-16H2,1-4H3;(H,2,3,4,5)
• InChI key: NIZBDUMEZAIMFT-UHFFFAOYSA-N

Description

Application

Atto 610 belongs to a new generation of fluorescent labels invented by ATTO-TEC. The dye is designed for application in the area of life science, e.g. labeling of DNA, RNA or proteins. Characteristic features of the label are strong absorption, high fluorescence quantum yield, high photostability, good water solubility, and very little triplet formation. Atto 610 is a pH sensitive product. While practically stable up to pH 8.5, it slowly degrades at higher pH. Maleimides are well suited for coupling to thiol groups. This is similar to iodacetamides, but maleimides do react more thiol selective. They do not show significant reaction with histidine or methionine. Hydrolysis of maleimides to a mixture of isomeric nonreactive maleamic acids can compete significantly with thiol modification, particularly above pH 8. Maleimides may be used for labeling of amines, which usually requires a higher pH than reaction of maleimides with thiols.

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 Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves