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pH-insensitive

" in MedChemExpress (MCE) Product Catalog:

23

Inhibitors & Agonists

19

Fluorescent Dye

2

Click Chemistry

Targets Recommended:
Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-D0048
    5-TAMRA-SE
    2 Publications Verification

    5-TAMRA-NHS ester; 5-Carboxytetramethylrhodamine succinimidyl ester

    		 Fluorescent Dye Others
    5-TAMRA-SE is an amine-reactive fluorescent agent, and its conjugate produces bright, pH-insensitive orange-red fluorescence with good photostability (Ex/Em = 565/580 nm).
    5-TAMRA-SE
  • HY-15942
    5-TAMRA
    2 Publications Verification

    		 Fluorescent Dye Others
    5-TAMRA can produce bright, pH-insensitive orange-red fluorescence (excitation and emission extremes of 546/579) and has good photostability. 5-TAMRA is mainly used as a fluorescent marker for the synthesis and study of specific oligonucleotide probes .
    5-TAMRA
  • HY-D1111
    TFAX 568, SE

    AFDye 568 NHS Ester

    		 Fluorescent Dye Others
    TFAX 568, SE is an orange fluorescent dye and exhibits pH-insensitivity over a very broad range (pH in the 4-10). TFAX 568, SE yields exceptionally bright, photostable conjugates with proteins or antibodies (such as goat anti-mouse IgG) .
    TFAX 568, SE
  • HY-D1110
    TFAX 594,SE

    		Fluorescent Dye Others
    TFAX 594,SE is a red fluorescent dye and exhibits pH-insensitivity over a very broad range (pH in the 4-10). TFAX 594,SE yields exceptionally bright, photostable conjugates with proteins or antibodies (such as goat anti-mouse IgG) .
    TFAX 594,SE
  • HY-D1113
    TFAX 488,TFP

    		Fluorescent Dye Others
    TFAX 488,TFP is a green fluorescent dye and exhibits pH-insensitivity over a very broad range (pH in the 4-10). TFAX 488,TFP yields exceptionally bright, photostable conjugates with proteins or antibodies (such as goat anti-mouse IgG, streptavidin) .
    TFAX 488,TFP
  • HY-D1114
    TFAX 488,SE dilithium

    		Fluorescent Dye Others
    TFAX 488,SE dilithium is a green fluorescent dye and exhibits pH-insensitivity over a very broad range (pH in the 4-10). TFAX 488,SE dilithium yields exceptionally bright, photostable conjugates with proteins or antibodies (such as goat anti-mouse IgG, streptavidin) .
    TFAX 488,SE dilithium
  • HY-W800775
    BP Fluor 647 Alkyne

    		Fluorescent Dye Others
    BP Fluor 647 Alkyne is a bright green-fluorescent dye optimal for use with the 633, 650 nm Argon laser. The alkyne group can react with azides via copper catalyzed Click Chemistry reactions. The dye is water soluble and pH-insensitive from pH 4 to pH 10. The dye has 4 sulfonate groups which make it highly water soluble and cause less aggregation in the aqueous solution. BP Fluor 647 Alkyne is used for protein and antibody labeling, or nucleic acid applications with high labeling density.
    BP Fluor 647 Alkyne
  • HY-W800832
    MB 660R DBCO

    		Fluorescent Dye Others
    MB 660R DBCO is a bright and photostable far-red dye that emits fluorescence at about 685 nm in the borderline spectral region between far-red and near-IR. Although the absorption maximum is at around 665 nm, this dye can be sufficiently excited by the 633 or 635 nm laser. MB 660R DBCO is water soluble and pH-insensitive from pH 4 to pH 10. MB 660R DBCO is a rhodamine-based dye, and like rhodamine dyes in general, it is very bright and exceptionally photostable.
    MB 660R DBCO
  • HY-149680
    CatD-P1

    		Ser/Thr Protease Others
    CatD-P1is a pH insensitive CatD (Cathepsin D) probe .
    CatD-P1
  • HY-W800696
    BP Fluor 430 azide

    		Fluorescent Dye Others
    BP Fluor 430 Azide is a water-soluble, green-fluorescent, azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free click chemistry reaction to form a stable triazole and does not require a Cu-catalyst or elevated temperatures. BP Fluor 430 is a bright, photostable, green-fluorescent probe with excitation near its absorption maximum at 432 nm and emission maximum at 539 nm. This probe is water soluble and pH-insensitive from pH 4 to pH 10. A next generation probe, BP Fluor 430 Picolyl Azide, is also available for detection of low abundance alkyne-tagged biomolecules.
    BP Fluor 430 azide
  • HY-D2768
    BP Fluor 430 NHS ester

    		Fluorescent Dye Others
    BP Fluor 430 NHS Ester is a water-soluble, green-fluorescent dye that is often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode. BP Fluor 405 conjugates are pH-insensitive from pH 4 to pH 10. The NHS ester (or succinimidyl ester) is the most popular amine reactive group for labeling the primary amines of proteins (Lys), amine-modified oligonucleotides, and other amine-containing molecules. Proteins can be labeled with BP Fluor 430 NHS Ester at high molar ratios without significant self-quenching, leading to brighter conjugates and more sensitive detection.
    BP Fluor 430 NHS ester
  • HY-D2771
    BP Fluor 405 NHS ester

    		Fluorescent Dye Others
    BP Fluor 405 NHS Ester is a water-soluble, blue-fluorescent dye that is often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode. BP Fluor 405 conjugates are pH-insensitive from pH 4 to pH 10. The NHS ester (or succinimidyl ester) is the most popular amine reactive group for labeling with the primary amines of proteins (Lys), amine-modified oligonucleotides, and other amine-containing molecules. Proteins can be labeled with BP Fluor 405 NHS Ester at high molar ratios without significant self-quenching, leading to brighter conjugates and more sensitive detection. BP Fluor 405 conjugates can also be used for the detection of abundance targets.
    BP Fluor 405 NHS ester
  • HY-W800701
    BP Fluor 546 DBCO

    		Biochemical Assay Reagents Others
    BP Fluor 546 DBCO is an azide-reactive probe that can be used for imaging azide-tagged biomolecules via a copper-free click reaction. The DBCO moiety reacts with azides to form a stable triazole and does not require a Cu-catalyst or elevated temperatures. In applications where the presence of copper is a concern, BP Fluor 546 DBCO is an ideal alternative to copper-requiring fluorescent alkynes. BP Fluor 546 is a water-soluble, pH-insensitive (from pH 4-10), orange-fluorescent dye with absorption and emission maxima at 554 and 570 nm, respectively. It can be used with the 488 nm and 532 nm laser lines. BP Fluor 546 dye conjugates to a variety of antibodies, peptides, proteins, tracers, and amplification substrates, which are often used for generating stable signals in imaging and flow cytometry.
    BP Fluor 546 DBCO
  • HY-D1482
    Sulfo-Cy5-tetrazine

    		Fluorescent Dye Others
    Sulfo Cy5-tetrazine is a tetrazine-coupled Cy5 (HY-D0821) derivative dye with fluorescence properties similar to CY5 (Ex/Em=633/647 nm). Sulfo-Cy5-tetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups .
    Sulfo-Cy5-tetrazine
  • HY-D2745
    BP Fluor 594 NHS ester

    		Fluorescent Dye Others
    BP Fluor 594 NHS ester is the most popular tool for modifying proteins or antibodies through the primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules with BP Fluor 594 label. The labeling occurs most efficiently at pH 7-9 and forms a stable, covalent amide bond. BP Fluor 594 dye can be used for proteins labeling at high molar ratios without significant self-quenching, enabling brighter conjugates and more sensitive detection. BP Fluor 594 is bright, water-soluble, and pH-insensitive from pH 4 to pH 10 red-fluorescent dye with absorption and emission maxima at 590 and 617 nm, respectively. It can be used with the 561 nm and 594 nm laser lines. BP Fluor 594 dye conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates often used for generation of stable signal in imaging and flow cytometry.
    BP Fluor 594 NHS ester
  • HY-D2747
    BP Fluor 405 acid

    		Fluorescent Dye Others
    BP Fluor 405 acid is a water-soluble, blue-fluorescent dye that is often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode. BP Fluor 405 conjugates are pH-insensitive from pH 4 to pH 10. The carboxylic acid of BP Fluor 405 is a reagent of choice for the preparation of custom activated esters that often are not commercially available. Examples of such activated esters include sulfo-NHS, TFP (2,3,5,6-Tetrafluorophenol), and STP (4-Sulfo-2,3,5,6-Tetrafluorophenol, Sodium Salt). Another common application for the non-activated carboxylic acid is peptide modification during solid phase synthesis, which usually requires in-situ activation with peptide coupling regents, e.g. HATU. BP Fluor 405 acid is also often used for control experiments, and for calibration.
    BP Fluor 405 acid
  • HY-W800770
    MB 543 DBCO

    		Fluorescent Dye Others
    MB 543 DBCO is a fluroescent agent with a terminal DBCO group. The DBCO group is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. MB 543 Alkyne is a very hydrophilic, water-soluble, orange fluorescent dye that has a maximal absorption of 543 nm and emission at 566 nm. The compound is also pH insensitive from pH 3 to pH 10.
    MB 543 DBCO
  • HY-W800831
    Tetra-sulfo-Cy7 DBCO

    		Fluorescent Dye Others
    Tetra-sulfo-Cy7 DBCO is a bright and photostable near-IR probe. The Cy7 DBCO is water-soluble, hydrophilic dye often a reagent of choice for assay where minimal non-specific binding and exceptional brightness is required. The fluorescence of Cy7 DBCO is pH insensitive from pH 4 to pH 10 and produces minimal autofluorescence of biological specimens in this region of the spectrum. Fluorescence of this long-wavelength Cyanine dye is not visible to the human eye but is readily detected by most imaging systems.
    Tetra-sulfo-Cy7 DBCO
  • HY-D1069
    DBCO-Cy3
    1 Publications Verification

    DBCO-Sulfo-Cy3

    		 Fluorescent Dye Others
    DBCO-Cy3 (DBCO-Sulfo-Cy3) is the derivative of Cyanine3 fluorophore, a pH insensitive from pH (4-10) orange fluorescent dyewith excitation maximum 555 nm and emission maximum of 580nm. DBCO-Cy3 has fast reaction kinetics and good stability, and is productive to use in many standard fluorescent instrumentations. DBCO-Cy3 is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
    DBCO-Cy3
  • HY-172728
    Difluorocarboxyfluorescein NHS Ester, 6-isomer

    		Fluorescent Dye Others
    Difluorocarboxyfluorescein NHS Ester, 6-isomer is an amine-reactive fluorinated analog of fluorescein that overcomes some of the key limitations of fluorescein, including greater photostability and a lower pKa (pKa ~ 4.7 versus 6.4 for fluorescein), making its fluorescence essentially pH insensitive in the physiological pH range. Although the mixed isomers of Difluorocarboxyfluorescein NHS Ester, is a preferred, routinely used fluorescent dye for labeling proteins, peptides and nucleotides, purification of peptide and nucleotides labeled with 5(6) isomers might be troublesome due to significant signal broadening in HPLC purification. Peptides and nucleotides labeled with a single isomer usually give better resolution in HPLC purification that is often required in the conjugation processes.
    Difluorocarboxyfluorescein NHS Ester, 6-isomer
  • HY-D2738
    BP Fluor 532 NHS ester

    		Fluorescent Dye Others
    BP Fluor 532 NHS ester is an amine reactive, yellow-emitting dye routinely used to label proteins or antibodies through primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules. The labeling occurs most efficiently at pH 7-9 and forms a stable, covalent amide bond. BP Fluor 532 is a bright yellow-fluorescent dye with pH insensitive emission from pH 4 to pH 10. The excitation of BP Fluor 532 is ideally suited for the frequency-doubled Nd:YAG laser line. BP Fluor 532 can be conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates, and is often used for the generation of stable signals in imaging and flow cytometry.
    BP Fluor 532 NHS ester
  • HY-W800702
    BP Fluor 555 azide

    		Fluorescent Dye Others
    BP Fluor 555 Azide is a water-soluble, bright orange-fluorescent dye with excitation ideally suited for the 532 nm or 555 nm laser lines and visualized with TRITC (tetramethylrhodamine) filter sets. BP Fluor 555 conjugates of antibodies, peptides, and proteins are pH insensitive from pH 4 to pH 10. AF 555 conjugates ideally suited for detection of low abundance targets. BP Fluor 555 Azide can be reacted with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free “click chemistry” reaction to form a stable triazole and does not require Cu-catalyst or elevated temperatures. The brightness and photostability of this dye are best suited to direct imaging of low-abundance targets.
    BP Fluor 555 azide
  • HY-D2763
    BP Fluor 532 maleimide

    		Fluorescent Dye Others
    BP Fluor 532 maleimide is a photostable, bright yellow-fluorescent dye with pH insensitive emission from pH 4 to pH 10. The excitation of BP Fluor 532 is ideally suited for the frequency-doubled Nd:YAG laser line. BP Fluor 532 dye can be conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates, and is often used for the generation of stable signals in imaging and flow cytometry. Maleimide is the most popular sulfhydryl-reactive group for conjugating the dye to a thiol group on a protein, oligonucleotide thiophosphate, or low molecular weight ligand. The maleimide group specifically and efficiently reacts with reduced thiols (sulfhydryl groups, –SH) at pH 6.5 to 7.5 to form a stable thioether bond. The resulting conjugates exhibit brighter fluorescence and greater photostability than the conjugates of many other spectrally similar fluorophores.
    BP Fluor 532 maleimide

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