Creative Biolabs

Alexa Fluor® 633 Hydrazide

[CAT#: NTA-2011-ZP85]

Tracer Type:
Fluorescent Dye
Neural Tracing

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AlexaFluor® 633 hydrazide can be used as a cell tracer or as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins. AlexaFluor®633 is a bright far red fluorescent dye with excitation light, which is very suitable for 633 nm laser line. AlexaFluor®633 dye can be used for stable signal generation in imaging and flow cytometry. It is water-soluble and insensitive to pH in the range of pH 4 to pH 10.

Detailed information about this AlexaFluor® hydrazide:
• Fluorophore label: AlexaFluor®633 dye
•Reactive group: hydrazide
• Reactivity: Aldehydes or base notes in polysaccharides or glycoproteins
• Ex / Em of conjugate: 624/643 nm
• Extinction coefficient: 110,000 cm-1M-1
• Dyes with similar spectra: Cy5
• Molecular weight: ~1,150
Tracer Type
Fluorescent Dye
Neural Tracing
Application Notes
AlexaFluor® hydrazide and hydroxylamine can be used as low molecular weight, membrane-impermeable cell tracers that can fix aldehydes. Compared with cell tracers derived from other spectrally similar fluorophores, they have brighter fluorescence and higher Light stability.
Research Areas
Neural Circuit Mapping
Direction of Transport
Normal Expression
Chemical Reactivity
Carboxylic Acid, Ketone, Aldehyde
Reactive Moiety
Amine, Hydrazide
Standard Filter Set
Texas Red®
Alexa Fluor® 633
Excitation/Emission (nm)
Room Temperature
Store at room temperature and protect from light.
For Research Use Only. Not For Clinical Use.
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