water-soluble

8-Aminopyrene-1,3,6-trisulfonic Acid (sodium salt) is an anionic fluorescent dye used as a reporter for glucose sensing and detecting other saccharides, with excitation/emission spectra of 425/503 nm. It can be utilized in solution or immobilized via attachment of an aldehyde-functionalized monomer by reductive amination without significantly altering fluorescence intensity.

WST-8 is a water-soluble tetrazolium dye, and WST-8-based assays have higher sensitivity than traditional MTS-based assays.

Lucifer Yellow CH dipotassium is a fluorescent dye, a water-soluble biological tracer (Ex/Em = 430/540 nm) containing a free hydrazino group that can react with aldehydes, used for neuronal tracing and gap junction detection.

Methylene Blue trihydrate (Basic blue 9) is a compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene Blue trihydrate is used as a bacteriologic stain and as an indicator. It inhibits soluble guanylyl cyclase and has been used to treat cyanide poisoning and to lower levels of methemoglobin. It also inhibits tau filament formation (IC50: 1.9μM).

Evans blue (C.I. 23860) is an effective inhibitor of glutamate uptake by synaptic vesicles and also acts as an antagonist of AMPA/kainate receptors. Evans blue is a water-soluble azo fluorescent dye that binds to serum albumin and is used to detect vascular permeability, blood-brain barrier integrity, and permeability.

ABTS diammonium salt (AzBTS-(NH₄)₂) is a substrate for horseradish peroxidase (HRP). ABTS diammonium salt is a water-soluble redox chromogenic probe that, upon oxidation, generates a stable blue-green cationic radical (ABTS⁺·). It exhibits characteristic absorption peaks at 405 nm, 414 nm, 645 nm, and 734 nm (with 734 nm commonly used as the detection wavelength) and serves as a classic tool for assessing antioxidant activity, peroxidase activity, and free radical scavenging capacity.

ADPS (N-Ethyl-N-(3-sulfopropyl)-3-methoxyaniline sodium salt) is a kind of new Trinder's reagents, which are high water-soluble aniline derivatives. It is widely used in diagnostic and biochemical tests.

CY5 triethylamine salt is a water-soluble dye, Excitation (nm):649, Emission (nm): 670.

HOE 32020 is a fluorescent dye and high-affinity DNA minor groove binder, specifically targeting A-T rich regions. It exhibits strong blue fluorescence upon DNA binding (Ex/Em: 352/461 nm) for nuclear imaging and cell cycle analysis.

Hoechst stains are part of a family of blue fluorescent dyes used to stain DNA. HOE 33187 is a cell dye for DNA. Hoechst dyes are soluble in water and in organic solvents such as dimethyl formamide or dimethyl sulfoxide. Concentrations can be achieved of

Cy5.5-SE TEA (442912-55-2 free base) is a water-soluble near-infrared cyanine dye(Ex/Em=680/710 nm) that features ultra-long near-infrared emission, high tissue penetration, low background fluorescence, and biocompatibility. Cy5.5-SE TEA (442912-55-2 free base) can be used for tumor-targeted imaging and vascular imaging, serving as a tool molecule for in vivo imaging and deep tissue analysis. Cy5.5-SE TEA (442912-55-2 free base) can also be used to prepare Cy5.5-labeled antibodies.

CY7-N3 (Sulfo-Cyanine7-N3) is a CY7 derivative for click chemistry, containing an azide group capable of undergoing CuAAc reactions with molecules bearing alkyne groups, or SPAAC reactions with molecules containing DBCO or BCN groups. CY7 is an amine-reactive, near-infrared (NIR) fluorophore commonly used for fluorescent labelling of proteins and nucleic acids.

Phenol Red sodium salt is a water-soluble pH indicator used in the range from 6.8 (yellow) to 8.2 (red).

DAOS (Sodium 3-((3,5-dimethoxyphenyl)(ethyl)amino)-2-hydroxypropane-1-sulfonate),Trinder's reagent, is a new type of highly water-soluble aniline derivative. It is widely used in diagnostic tests and biochemical tests.

C.I. Acid Black 24 is a dye that is a blue-black powder. Soluble in water, aqueous solution is reddish blue to black, greenish blue when added to concentrated hydrochloric acid; date red when added to concentrated sodium hydroxide solution. Dissolved in ethanol is navy blue, in concentrated sulfuric acid is gray-blue to black, after dilution is dark green light blue; in concentrated nitric acid is red light brown and then changed to yellow. Used for dyeing woolen fabrics, also suitable for nylon, silk and leather dyeing.

CI Direct Brown 2 is a direct dye. It is soluble in water and ionizable to form colored anions. It also can directly dye cellulose fibers or protein fibers.

Sulfo-Cy7.5 NHS ester tripotassium, a near-infrared, water-soluble, hydrophilic dye, functions primarily as an NHS ester designed for amine group modification. This compound features a trimethylene bridge and includes a linker arm, facilitating its attachment to proteins, peptides, and various molecules. It is commonly utilized in research focused on NIR (near-infrared) imaging applications.

WST-1 is a cytotoxic, water-soluble tetrazolium salt that induces intracellular mitochondrial dehydrogenases to undergo NADH-dependent enzymatic reactions, releasing water-soluble methylbenzene products.WST-1 can be used to detect cell proliferation and cellular activity by assaying the uptake values, and can be used to determine superoxide dismutase activity in the WST-1 plate assay.

BP Fluor 350 NHS ester is an amine-reactive, water-soluble dye that emits blue. It is specifically designed to efficiently modify primary amines at pH 7-9, resulting in the formation of a stable covalent amide bond.

Alexa fluor 647 maleimide is a water-soluble fluorescent dye that maintains stability under a broad range of physiological conditions. Alexa fluor 647 maleimide facilitates the covalent attachment of fluorescent groups to proteins through selective reaction with thiol groups, thereby enabling precise labeling. This labeling method offers both high sensitivity and specificity, allowing detection of proteins at very low concentrations. Alexa fluor 647 maleimide is widely applied in the study of protein expression and localization, and it can also be conjugated to antibodies for labeling cell surface antigens or specific proteins within tissues [Ex/Em(nm)=651/671].

BP Fluor 430 NHS Ester is a water-soluble green fluorescent dye commonly utilized in multicolor applications such as flow cytometry and super-resolution microscopy employing STORM. It is optimally excited by the krypton laser's 407 nm line or a 408 nm violet laser diode. BP Fluor 405 conjugates remain pH insensitive from pH 4 to pH 10. The NHS Ester (or succinimidyl ester) is most frequently used as an amine-reactive group for labeling primary amines in 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, resulting in brighter conjugates and more sensitive detection.

Cy5-bifunctional dye potassium is a water-soluble bifunctional dye with two NHS ester terminal groups. The NHS ester can react specifically and efficiently under neutral or mildly alkaline conditions with primary amines, such as lysine residue side chains or amino silane-coated surfaces, forming covalent bonds. This dye is applicable for amine cross-linking and other advanced labeling applications.

BP Fluor 405 Cadaverine is a carbonyl-reactive structural component employed to modify carboxyl groups through stable amide bonds in the presence of activators (such as EDC or DCC) or activated esters (such as NHS ester). Another common use of BP Fluor 405 Cadaverine includes cell fixation via treatment with formaldehyde or glutaraldehyde. BP Fluor 405 is a water-soluble blue fluorescent dye, widely utilized in multicolor applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is particularly well-matched to the krypton laser's 407 nm spectral line or the 408 nm violet laser diode.

BP Fluor 594 NHS ester is a widely used tool for modifying proteins or antibodies through the labeling of primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules. The labeling process is optimal at pH 7-9, forming stable covalent amide bonds. BP Fluor 594 dye supports high molar ratio protein labeling with negligible self-quenching, resulting in brighter conjugates and more sensitive detection. BP Fluor 594 is a bright, water-soluble, pH-insensitive red fluorescent dye effective across a pH range of 4 to 10, with absorption and emission peaks at 590 and 617 nm, respectively. It is compatible with 561 nm and 594 nm laser lines. BP Fluor 594 can bind to various antibodies, peptides, proteins, tracers, and amplification substrates, and it is commonly used to generate stable signals in imaging and flow cytometry.