1,4dichloro 5carboxytetramethylrhodamine

1,4-Dichloro 5-carboxytetramethylrhodamine is a fluorescence labeling agent [Ex: 541 nm, Em: 568 nm].

5-ROX (5-Carboxy-X-rhodamine), a rhodamine dye, exhibits strong fluorescence in aqueous buffer with an excitation wavelength (λexit) of 580 nm (ε = 3.6×10^4 (M·cm)) and an emission wavelength (λemit) of 604 nm (ϕ = 0.94).

8-(4-ethynylphenyl)-1,3,5,7-tetramethyl BODIPY is an organic fluorescent dye characterized by an ethynylphenyl group at the 8-position of the boron dipyrromethene (BODIPY) structure and methyl substituents at the 1, 3, 5, and 7 positions. It boasts a high fluorescence quantum yield and specific chemical properties, making it useful for applications such as fluorescence imaging.

8-(4-bromophenyl)-1,3,5,7-tetramethyl-BODIPY is a derivative based on the BODIPY structure, featuring four methyl groups at positions 1, 3, 5, and 7, with a para-bromophenyl group attached at position 8. This compound finds extensive use in fields such as bioimaging, chemical analysis, and materials science, serving as a fluorescent probe for imaging biological samples, detecting specific chemicals, or in the development of optical materials.

FD&C Yellow No. 5 Aluminum Lake is a synthetic lemon yellow azo dye primarily used as a food coloring.

bis-ANS is a high-affinity non-covalent extrinsic fluorescent dye used to analyze protein conformation.[1] Its predominant interaction with proteins is through its hydrophobic phenyl and naphthyl rings.[2] bis-ANS has an excitation maxima of 390 nm.[3] It has an emission maximum of 523 nm when free in solution but undergoes a blue shift with an increase in fluorescence intensity when bound to protein; for example, when bound to intestinal fatty acid binding protein (FAPB2) it has emission maxima of 484-496 nm. bis-ANS has been used to label mechanically damaged neurons in acute brain slices.4 It also potently inhibits microtubule assembly.[5],[6]

Biotin-11-dUTP [tetra(triethylammonium) salt] [(2S,3S,4R,5R,6R)-5-(2,4-dioxopyrimidin-1-yl)-4-hydroxy-6-(hydroxymethyl)-2-[(3aR,4S,6R,6aS)-2-oxohexahydro-2H-thieno[3,4-d]imidazol-4-yl]-tetrahydro-2H-furo[3,2-d][1,3,2]dioxaphosphorin-3-yl]phosphonate] is used as a fluorescent substitute for dTTP.

Z-Gly-Pro-Arg-4MβNA is a thrombin substrate that, when cleaved by thrombin, releases 4-methoxy-2-naphthylamine (4MβNA). The liberated 4MβNA reacts with 5-nitrosalicylaldehyde, forming an insoluble yellow fluorescent product, which indicates the site of thrombin activity [1].

10-(4-(Bis(2-hydroxyethyl)amino)phenyl)-5,5-difluoro-1,3,7,9-tetramethyl-5H-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-4-ium-5-uide, a derivative of BODIPY, serves as a fluorescent indicator specifically for the detection of Pb 2+ with an excitation at 504 nM and emission at 510 nM [1] [2].

2-4-(2-Cyanoethyl)(2-phenylethyl)aminophenylazo-5-nitrobenzonitrile is characterized by its storage stability and its fluid, nonagglomerating dispersion properties as an azo dye [1].

Ac-WEHD-pNA serves as a colorimetric substrate for caspases 1, 4, 5, and 14, widely used to assess caspase activity [1].

DMTr-4'-F-5-Me-U-CED phosphoramidite (DMTr-4'-F-5-Methyluridine-CED phosphoramidite) serves as a dye reagent for oligonucleotide labeling, offering effectiveness comparable to native deoxyribonucleoside phosphoramidites. This compound functions as a critical building block [1].

1) Non-toxicity: The unique oiliness and high molecular weight characteristics of CelRed prevent it from penetrating cell membranes into cells, and Ames test results also show that the mutagenicity of CelRed dye is much less than EB. 2) High sensitivity: