for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Desiccated Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
DL 633 Sulfhydryl-Reactive Dye is a maleimide-activated derivative of high-performance DL 633 used to fluorescently label sulfhydryl-containing peptides, proteins, and other biomolecular probes.
Features of DL 633 Maleimide:
• Specific—maleimide-activated dye labels proteins and other molecules at reduced sulfhydryls (-SH) • Efficient labeling methods—well-characterized chemistry and optimized protocols provide for reliable, high-quality labeling • Optimized antibody labeling procedure—complete protocol for IgG reduction and labeling and calculating the labeling efficiency
Applications: • Antibody labeling for immunofluorescence applications, including immunocytochemistry (ICC), immunohistochemistry (IHC), Western blotting and ELISA assay • Target macromolecule labeling for in vitro and in vivo fluorescent detection strategies
DL 633 Sulfhydryl-Reactive Dye is activated with a maleic acid imide (maleimide) moiety to form a reactive alkylation reagent. Labeling occurs through reaction of the maleimide-activated dye with reduced sulfhydryl groups (-SH) to form stable thioether bonds. Maleimides are specific for sulfhydryl groups between pH 6.5–7.5. Learn more aboutmaleimide chemistry.
Specifications
Storage
Store at -20°C, Desiccated
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Product Properties
Reactivity
Thiol
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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