Catalog |
name |
Description |
price |
R-M-5422 |
Texas Red amine |
Texas Red, also known as sulfonated rhodamine 101, is a traditional but still commonly used red fluorescent dye. The main excitation peak of Texas Red dye is 589 nm, and it can also be excited by krypton laser at about 567 nm. The excitation efficiency is slightly lower. The fluorescence emission peak of Dezhou red is about 615 nm, which belongs to the visible area of human flesh eye and is more sensitive. Dezhou red molecule has sulfonate ion, good water solubility and bright fluorescence. It can be used to develop antigens with very low expression. (Texas Red amine) the product contains amino functional groups and can react with functional groups such as carboxylic acid. 6 carbon short chain helps to separate dye molecules from labeled objects, improve labeling efficiency and reduce the impact of labeled objects on dye molecules. |
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R-M-5423 |
Texas Red maleimide |
Texas Red maleimide,Sulforhodamine 101 maleimide from ruixi.Texas Red, also known as sulfonated rhodamine 101, is a traditional but still commonly used red fluorescent dye. The main excitation peak of Texas Red dye is 589 nm, and it can also be excited by krypton laser at about 567 nm. The excitation efficiency is slightly lower. The fluorescence emission peak of Dezhou red is about 615 nm, which belongs to the visible area of human flesh eye and is more sensitive. Dezhou red molecule has sulfonate ion, good water solubility and bright fluorescence. It can be used to develop antigens with very low expression. Maleimide is a group commonly used in biomarker reaction. It can generate stable thioether structure through affinity addition reaction with sulfhydryl (- SH), so as to realize labeling. Although amino groups (such as lysine arginine side chain) also have affinity, maleimide selectively labels sulfhydryl groups in neutral or slightly acidic buffer (reaction speed > 1000 times faster than amino groups). The labeling reaction has the advantages of rapid reaction, high selectivity and good yield. In addition, sulfhydryl is a functional group widely existing in biomolecules, such as serine and disulfide bond in proteins. Therefore, maleimide / thiol labeling has become the most commonly used biological ligation reaction second only to NHS / amino labeling. |
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R-M-5428 |
Carboxyrhodamine 110 LC Acid |
Carboxyrhodamine 110 also known as Rhodamine Green™ Carboxylic Acid. The amine-reactive Carboxyrhodamine 110 LC can be used to create bright and photostable green-fluorescent bioconjugates with excitation/emission maxima ~502/527 nm. For many applications, the dye is preferred over carboxyfluorescein or FITC because of its exceptional photostability and fluorescence insensitivity to pH (4-9).(Carboxyrhodamine 110 LC Acid)This reagent is supplied as Boc protected derivative to ensure compatibility with Fmoc solid phase peptide synthesis. Medium length, hydrophobic spacer arm (total length is 22.4 angstroms) provides an adequate separation between the dye and peptide. Spacers of different lengths are available upon request. |
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R-M-5441 |
PB NHS Ester |
PB dye (Pacific Blue™) is a bright, blue-fluorescent dye optimally excited by the 405 nm line of the violet laser and with excitation/emission at 410/455 nm. The excitation and emission spectrum of PB dye offers minimal overlap with green fluorophore emission spectra, making it an ideal choice for the first violet channel. Conjugates of this dye are strongly fluorescent even at neutral pH.The amine-reactive PB NHS Etser (Pacific Blue™ succinimidyl ester) can be used to can be used to create blue-fluorescent bioconjugates with excitation/emission maxima ~410/455 nm that are excitable by the 405 nm spectral line of the blue diode (violet) laser. NHS Ester reacts specifically and efficiently with a primary amine (e.g., side chain of lysine residues or aminosilane-coated surfaces) at pH 7-9 to form a stable, covalent amide bond. |
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R-M-5446 |
5(6)-Carboxyrhodamine 110 NHS Ester |
5(6)-Carboxyrhodamine 110 NHS Ester also known as Rhodamine Green™ Carboxylic Acid. The amine-reactive 5(6)-Carboxyrhodamine 110 NHS Ester can be used to create bright and photostable green-fluorescent bioconjugates with excitation/emission maxima ~502/527 nm.(5(6)-Carboxyrhodamine 110 NHS Ester)The conjugates of this dye often used for Fluorescence Correlation Spectroscopy (FCS). For many applications, 5(6)-Carboxyrhodamine 110 NHS Ester is preferred over 5-(6)-carboxyfluorescein NHS ester or FITC because of its exceptional photostability and fluorescence insensitivity to pH (4-9).
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R-M-5449 |
TAMRA Picolyl Azide |
TAMRA Picolyl Azide is an advanced fluorescent probe that incorporates a copper-chelating motif to raise the effective concentration of Cu(I) at the reaction site. The rate of CuAAC reaction depends on concentrations of all reagents, including copper, thus the raise of the effective copper concentration at the reaction site dramatically increase the rate of CuAAC reaction without the need to increase concentration of azide reagent and copper. This probe is compatible with various excitation sources including mercury arc, tungsten and xenon arc lamps, the 544 nm line of the Helium-Neon laser and the 532 nm green laser line.In addition, the use of TAMRA Picolyl Azide instead of conventional TAMRA Azide allows for at least a tenfold reduction in the concentration of the copper catalyst without sacrificing the efficiency of labeling.In summary, the introduction of a picolyl moiety into an azide probe leads to a substantial increase in the sensitivity of alkyne detection. This will be of special value for the detection of low abundance targets or where significant increase in signal intensity is desired. |
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R-M-5533 |
DAF-2,CAS 205391-01-1 |
A highly sensitive and specific fluorescent indicator for the direct detection of nitric oxide (NO) in vitro. The relatively non-fluorescent DAF-2 reacts rapidly with NO in the presence of oxygen to yield the highly fluorescent triazolofluorescein compound . Can detect NO under neutral conditions (detection limit = 5 nM). |
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R-M-5534 |
DAF-2 DA,cas:205391-02-2 |
DAF-2 DA,4,5-Diaminofluorescein diacetate is a sensitive nitric oxide (NO) fluorescent probe, which is a cell membrane permeable derivative of DAF-2. Once in the cell, DAF-2 is produced by the action of cellular esterase to prevent the loss of signal caused by the diffusion of molecules out of the cell. In the presence of oxygen, DAF-2 reacts with NO to form a strong fluorescent triazole fluorescein (DAF-2T). |
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R-M-5547 |
DEA-NONOate,cas:56329-27-2 |
Releases nitric oxide spontaneously under physiological conditions. Useful for reliable and controllable NO generation in solution. |
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R-M-5548 |
SIN-1,cas:16142-27-1 |
3-Morpholinosydnonimine is also known as SIN-1.Generate nitric oxide and form superoxides spontaneously under physiological conditions and is often used to probe the cell stress response and induce cGMP production. |
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