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Protein Labeling Reagents

Various reagents designed to selectively label target proteins. Products include classic dyes, radioisotope labels, biotinylation reagents, fluorescent labels, molecular probes, assays, and labeling kits.
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1

Invitrogen™ Alexa Fluor™ 555 NHS Ester (Succinimidyl Ester)  DFS Item

Alexa Fluor™ 555 is a bright orange dye. Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 555 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Shipping Condition Room Temperature
Product Type Dye
Emission 572 nm
Excitation 555 nm
Product Line Alexa Fluor
2

Invitrogen™ Alexa Fluor™ 647 NHS Ester (Succinimidyl Ester)  DFS Item

Alexa Fluor™ 647 is a bright and photostable far-red dye with excitation ideally suited to the 633 nm laser line.

Emission 672 nm
Excitation 651 nm
3

Invitrogen™ Alexa Fluor™ 514 NHS Ester (Succinimidyl Ester)  DFS Item

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 514 dye is water soluble and pH-insensitive from pH 4 to pH 10.

4

Thermo Scientific™ DyLight™ 650-4xPEG NHS Ester

PEGylated far-red dye for enhanced fluorescence and reduced non-specific binding.

6

Thermo Scientific™ DyLight™ 775-B2 NHS Ester

Label amine-containing molecules for fluorescence imaging or flow cytometry with these benzopyrillium- and cyanine-based, infrared-emitting (633 or 700 laser) NHS ester dyes.

8

Invitrogen™ LysoLight™ sDBCO Reagents

LysoLight sDBCO reagents are engineered for use with SiteClick Duet and Quartet antibody labeling kits. They offer robust and reproducible conjugation without compromising antibody-target affinity.

Shipping Condition Ambient
Content And Storage -25°C to +8°C
Solubility DMSO (Dimethylsulfoxide)
Labeling Method Click Chemistry
Green Features Enhanced stability
For Use With (Application) SiteClick Antibody Labeling
Chemical Reactivity Azide
Detection Method Fluorescence
Labeling Target Azido Modified Antibodies
For Use With (Equipment) Flow Cytometer, Fluorescence Microscope, High Content Analysis Instrument
Product Type Reactive Dye
Reactive Moiety sDBCO alkyne
Label Type LysoLight
Product Line LysoLight
9

Invitrogen™ Alexa Fluor™ 430 NHS Ester (Succinimidyl Ester)  DFS Item

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 430 dye is water soluble and pH-insensitive from pH 4 to pH 10.

11

Invitrogen™ Alexa Fluor™ 750 NHS Ester (Succinimidyl Ester)  DFS Item

Alexa Fluor™ 750 is a bright and photostable near-IR dye that is spectrally similar to Cy7.

Shipping Condition Room Temperature
Product Type Dye
Emission 782 nm
Excitation 753 nm
Product Line Alexa Fluor
12

Invitrogen™ 5-ROX (5-Carboxy-X-Rhodamine, Triethylammonium Salt), single isomer  DFS Item

5-ROX (5-Carboxy-X-Rhodamine, Triethylammonium Salt), single isomer

13

Invitrogen™ BODIPY™ FL-C5 NHS Ester (Succinimidyl Ester)  DFS Item

BODIPY™ FL-C5 dye is bright, green fluorescent dye with similar excitation and emission to fluorescein (FITC) or Alexa Fluor™ 488 dye.

14

Invitrogen™ 5-SFX (6-(Fluorescein-5-Carboxamido) Hexanoic Acid, Succinimidyl Ester), single isomer  DFS Item

5-SFX (6-(Fluorescein-5-Carboxamido) Hexanoic Acid, Succinimidyl Ester), single isomer

15

Invitrogen™ pHrodo™ Dyes for Amine Labeling  DFS Item

Amine-reactive and TFP ester pHrodo dyes enable accurate measurement of cell endocytosis and phagocytosis, with low signal-to-background, for use in live cell assays.

Shipping Condition Room Temperature
Label Type pHrodo (pH sensitive)
Chemical Reactivity Amine
Product Line pHrodo