Protein Labeling Reagents

Thermo Scientific™ Pierce™ Iodination Tubes

Reliably label (iodinate) proteins and peptides with iodine-125 using glass test tubes that are pre-coated (activated) with iodination reagent.

MilliporeSigma™ Novagen™ D-Desthiobiotin

Provides elution of Strep·Tag™ II proteins from biotin-binding site of Strep·Tactin™ resins

Invitrogen™ Click-IT™ ManNAz Metabolic Glycoprotein Labeling Reagent (tetraacetylated N-Azidoacetyl-D-Mannosamine)  

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Simple and robust two-step technique

Invitrogen™ ARP (N-(aminooxyacetyl)-N'-(D-Biotinoyl) hydrazine, Trifluoroacetic Acid Salt)  

ARP (N-(aminooxyacetyl)-N'-(D-Biotinoyl) hydrazine, Trifluoroacetic Acid Salt)

Invitrogen™ Dansyl Ethylenediamine, 5-Dimethylaminonaphthalene-1-(N-(2-Aminoethyl))sulfonamide  

5-dimethylaminonaphthalene-1-(N-(2-aminoethyl))sulfonamide (dansyl ethylenediamine)

Invitrogen™ Alexa Fluor™ 633 NHS Ester (Succinimidyl Ester)  

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

Invitrogen™ BODIPY™ 558/568 NHS Ester (Succinimidyl Ester)  

BODIPY™ 558/568 dye is bright, red fluorescent dye. It has a high extinction coefficient and fluorescence quantum yield and is relatively insensitive to solvent polarity and pH change.

Invitrogen™ DNP-X, SE, 6-(2,4-Dinitrophenyl)aminohexanoic Acid, Succinimidyl Ester  

DNP-X, SE, 6-(2,4-Dinitrophenyl)aminohexanoic Acid, Succinimidyl Ester

Invitrogen™ Dabcyl, SE, 4-((4-(dimethylamino)phenyl)azo)benzoic Acid, Succinimidyl Ester  

4-((4-(dimethylamino)phenyl)azo)benzoic acid, succinimidyl ester (dabcyl, SE)

Invitrogen™ BODIPY™ 530/550 NHS Ester (Succinimidyl Ester)  

BODIPY™ 530/550 dye is bright, orange fluorescent dye. It has a high extinction coefficient and fluorescence quantum yield and is relatively insensitive to solvent polarity and pH change.

Invitrogen™ CPM (7-Diethylamino-3-(4'-Maleimidylphenyl)-4-Methylcoumarin)  

The thiol-reactive coumarin, CPM is very weakly fluorescent until reacted with thiols producing a conjugate with excitation/emission maxima of ∼384/470 nm.

Invitrogen™ 5-DTAF (5-(4,6-Dichlorotriazinyl) Aminofluorescein), single isomer  

Invitrogen™ BODIPY™ FL NHS Ester (Succinimidyl Ester)  

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

Invitrogen™ BODIPY™ 576/589 NHS Ester (Succinimidyl Ester)  

BODIPY™ 576/589 dye is bright, red fluorescent dye with similar excitation and emission to Rhodamine Red™ and Alexa Fluor™568.

MilliporeSigma™ Calbiochem™ β-Cyclodextrin

Homogeneous cyclic α1,4-linked D-glucopyranose units in a seven-member ring. Forms clathrates. Suitable for use with dansyl chloride to form water-soluble complexes for fluorescent labeling of proteins.