Dyes and Labeling Reagents

This category comprises chemicals for permanent and temporary labeling of organelles, proteins, and other molecules. For example, this includes the covalent linkage of a target protein, such as an antibody, with a fluorescent dye/fluorophore, allowing detection of the target protein in microscopic experiments. For the purpose of detection, proteins can also be coupled with reporter enzymes (e.g. HRP) or radioactive isotopes. To facilitate the purification of a target protein, biotinylation followed by streptavidine affinity binding has proven to be effective.

This category comprises chemicals for permanent and temporary labeling of organelles, proteins, and other molecules. For example, this includes the covalent linkage of a target protein, such as an... read more »
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Dyes and Labeling Reagents

This category comprises chemicals for permanent and temporary labeling of organelles, proteins, and other molecules. For example, this includes the covalent linkage of a target protein, such as an antibody, with a fluorescent dye/fluorophore, allowing detection of the target protein in microscopic experiments. For the purpose of detection, proteins can also be coupled with reporter enzymes (e.g. HRP) or radioactive isotopes. To facilitate the purification of a target protein, biotinylation followed by streptavidine affinity binding has proven to be effective.

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Indocyanine Green
Indocyanine Green

Item number: ABD-91

Indocyanine green (ICG) is a cyanine dye used in medical diagnostics. It is used for determining cardiac output, hepatic function, and liver blood flow, and for ophthalmic angiography. It has a peak spectral absorption close to 800 nm. These infrared frequencies penetrate retinal layers, allowing ICG angiography to...
Application: ICG angiography
CAS 3599-32-4
434.00€ *
Review
Cyanine 3 maleimide [equivalent to Cy3(R) maleimide]
Cyanine 3 maleimide [equivalent to Cy3(R) maleimide]

Item number: ABD-142

Ex: 555 nm. Em: 565 nm. Soluble in: DMSO. A variety of cyanine 3 (Cy3®) dyes has been used to label biological molecules for fluorescence imaging and other fluorescence-based biochemical analysis. They are widely used for labeling peptides, proteins and oligos etc. Cy3® dyes have enhanced fluorescence upon binding...
Application: Labeling probe, classic labeling dye, cyanine
MW: 938,00 D
145.00€ *
Review
TWO-PRO(TM) 3 (equivalent to TO-PRO(R) 3) *5 mM DMSO Solution*
TWO-PRO(TM) 3 (equivalent to TO-PRO(R) 3) *5 mM DMSO...

Item number: ABD-17572

Ex: 642 nm. Em: 661 nm. TWO-PRO(TM)-3 is chemically equivalent to TO-PRO(R)-3 (TO-PRO(R) is the trademark of Invitrogen). TWO-PRO(TM)-3 is a carbocyanine dimer with far-red fluorescence similar to Cy(R) 5 dyes. It is cell-impermeant and easily distinguished from fluorescein and rhodamine as a nuclear counterstain...
Application: Biochemical assays, nucleic acid detection, DNA detection
CAS 157199-63-8
MW: 671,42 D
291.00€ *
Review
Tide Quencher(TM) 2 azide (TQ2 azide)
Tide Quencher(TM) 2 azide (TQ2 azide)

Item number: ABD-2211

TQ2 is designed to be a superior quencher to FAM, HEX, TET, JOE, TF2 and rhodamine 6G. TQ2 has (a). much stronger absorption, (b). much higher quenching efficiency, and (c). versatile reactive forms with desired solubility for labeling oligonucleotides and peptides. This TQ2 product is reactive to alkynes, and...
Application: Labeling, Click chemistry
MW: 582,72 D
291.00€ *
Review
TR C2 malemide
TR C2 malemide

Item number: ABD-483

TR C2 maleimide is an excellent thiol-reactive fluorescent reagent for labeling thiol-containing biological molecules (such as peptides, proteins and thiol-modfied oligonucleotides). It selectively reacts with thiol groups of peptides, proteins and other biological molecules (such as small thiol-containing organic...
Application: Labeling
145.00€ *
Review
Rhodamine 6G *Fluorescence reference standard*
Rhodamine 6G *Fluorescence reference standard*

Item number: ABD-70

Rhodamine 6G is often used in a laser dye pumped by the 2nd (532 nm) harmonic from a Nd:YAG laser since it has a remarkably high photostability and high quantum yield.
Application: Labeling
CAS 989-38-8
114.00€ *
Review
Rhodamine 110 (chloride)
Rhodamine 110 (chloride)

Item number: Cay19061-250

Rhodamine 110 is a green fluorescent cationic dye with excitation and emission maxima of 496 and 520 nm, respectively. When incorporated with a hydrolytic substrate (e.g., proteinase or peptidase substrates), it can be used as a highly sensitive detection reagent in fluorescence-based enzyme assays. Rhodamine 110...
Keywords: RH110, Rhodamine 560, Rhodamine N, 3,6-diamino-9-(2-carboxyphenyl)-xanthylium, monochloride
Application: Green fluorescent cationic dye
CAS 13558-31-1
MW: 366.8 D
From 110.00€ *
Review
Hoechst 34580
Hoechst 34580

Item number: CDX-B0094-M005

Solid. Soluble in DMSO, DMF or water (1mg/ml). The Hoechst stains are a family of fluorescent stains for labeling DNA in fluorescence microscopy. The blue fluorescent Hoechst dye is a cell permeable nucleic acid stain that has multiple applications, including sensitive detection of DNA in the presence of RNA in...
Keywords: N,N-Dimethyl-4-[5-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]benzenamine trihydrochloride
Application: Fluororescent stain, DNA labeling
CAS 911004-45-0
MW: 561.0 D
From 95.00€ *
Review
GSH-Oet
GSH-Oet

Item number: CDX-G0006-M500

Solid. Soluble in DMSO. GSH-OEt is cellpermeable and has been used to protect cells against radiation damage, oxidants and various toxic compounds including heavy metals. GSH-OEt is a protective agent against cellular damage, such as cataracts and mitochondrial degeneration. It undergoes hydrolysis by intracellular...
Keywords: Glutathione reduced ethyl ester
Application: Cell permeable glutathione
CAS 92614-59-0
MW: 335,38 D
From 85.00€ *
Review
AQC
AQC

Item number: CDX-A0057-M050

Solid. Soluble in DMSO or DMF. Suitable for amino acid or protein sequence analysis by HPLC with fluorescence detection.
Keywords: 6-Aminoquinoline N-succinimidyl ester
Application: HPLC, Fluorescence amino acid /protein detection
CAS 148757-94-2
MW: 285,25 D
From 462.00€ *
Review
NBD-X, succinimidyl ester
NBD-X, succinimidyl ester

Item number: ABD-829

Compared to NBD, NBD-X acid gives better yield for labeling biopolymers. The fluorescence spectra of NBD derivatives are highly environment-sensitive, the fluorescence intensity decreases significantly in aqueous solutions.
Application: Labeling
CAS 145195-58-0
434.00€ *
Review
5-FAM (5-Carboxyfluorescein) *Validated for labeling peptides*
5-FAM (5-Carboxyfluorescein) *Validated for labeling...

Item number: ABD-104

5-FAM is the purified single isomer of carboxyfluorescein. It is one of the most popular green fluorescent reagents used for labeling peptides, proteins and nucleotides.
Application: Labeling
CAS 76823-03-5
From 114.00€ *
Review
44 from 269 pages