Description
AQI-C6-SE – Amine-Reactive Anthraquinone Redox Marker with 6-Carbon Linker
Anthraquinone-2-amidopentyl carboxylic acid NHS ester (AQI-C6-SE) is a high-purity, amine-reactive anthraquinone derivative engineered for electroactive labeling of biomolecules. Featuring a six-carbon linker for optimal flexibility, this reagent enables covalent attachment to primary amines on proteins or alkylamino-modified nucleic acids. AQI-C6-SE offers excellent redox performance, making it ideal for integration into electrochemical detection platforms.
Performance Highlights
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Amine-reactive NHS ester for stable covalent attachment
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Designed for redox-active labeling of proteins and nucleic acids
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Formal electrode potential: Ef = −0.425 V vs. Ag/AgCl (1 M KCl)
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Contains a flexible 6-carbon spacer for enhanced accessibility
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Optimized for electrochemical applications requiring reproducible signal output
Properties
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Trade Name: Anthraquinone-2-amidopentyl-carboxylic acid, succinimidyl ester (AQI-C6-SE)
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Reactive Moiety: NHS ester, reacts with 1° amines to form a stable amide linkage
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Molecular Weight: 462.4
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Empirical Formula: C₂₅H₂₂N₂O₇
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Solubility: DMF, DMSO
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Appearance (color): Light yellow
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Appearance (form): Solid (powder)
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Storage: −20 °C; keep dry and protect from light, especially in solution
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CAS Number: None known
Application
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Electrochemical labeling of proteins and modified oligonucleotides
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Biosensor development and redox-tagged probe generation
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Covalent conjugation in diagnostic or analytical platforms
