Dyes

Direct Black 38 is a benzidine-based azo dye primarily utilized in textile dyeing applications. Its primary mechanism involves the degradation of azo bonds by microbial enzymes, particularly Enterococcus gallinarum azoreductase, leading to the release of benzidine and 4-aminobiphenyl. This compound is significant for studies in environmental toxicology, wastewater treatment, and carcinogenicity, although it is essential to note that its metabolite benzidine is classified as a human carcinogen.

Phenol Red sodium salt is a pH indicator dye with a primary role as an acid-base indicator. It exhibits a distinct color change from pink to yellow in response to shifts in pH, allowing for effective monitoring in various biological assays. Additionally, Phenol Red sodium salt acts as an antagonist of rat P2X1R and enhances the halogenating activity of myeloperoxidase, making it valuable for studies involving cellular mechanisms and enzyme activities. Its applications extend to cell culture and biochemical research where precise pH measurement is essential.

Basic Green 4, also known as Malachite Green, is a cationic dye primarily utilized for its bactericidal properties in aquaculture and for the determination of phosphates in laboratory settings. It is characterized by significant cytotoxicity and potential carcinogenic effects on mammalian cells, evidenced by IC50 values of 2.03 µM for HEp-2 human laryngeal cells and 13.8 µM for Caco-2 human colorectal adenocarcinoma cells. Additionally, Basic Green 4 has been associated with the promotion of liver tumor development, with a maximum absorbance wavelength of 621 nm.

Sunset Yellow FCF is an orange azo dye that exhibits maximal absorption at a wavelength of 480 nm. This compound serves as a coloring agent in various applications, including food, cosmetics, and pharmaceuticals, and is utilized for its stability and vibrant hue. Its use in research allows for the study of dye behavior and interactions in biological systems.

RT-AM is a glutathione fluorescent probe designed to monitor real-time glutathione dynamics in living cells through a reversible reaction mechanism. This pro-agent transforms into a highly sensitive fluorescent reporter upon interaction with thiols, enabling quantitative assessments of glutathione levels. RT-AM is essential for studying oxidative stress, cellular redox states, and related biochemical pathways in cellular and molecular research applications.

Azure A chloride is a phenothiazine dye that primarily targets DNA for binding. This reagent is commonly utilized in agarose gel electrophoresis and polyacrylamide gel electrophoresis (PAGE) for the effective separation of DNA and protein fragments. Azure A chloride exhibits non-cooperative binding to double-stranded DNA through weak intercalation, inducing molecular conformational changes that affect rotational motion and optical characteristics. Its unique properties also allow for chemisorption on mild steel surfaces to form a protective film, as described by the Langmuir adsorption isotherm.

Nile blue chloride is a photostable organic dye with strong fluorescent properties. It can be utilized in the development of ratiometric pH-sensitive probes for real-time monitoring of extracellular fluid pH in cancer research. Additionally, Nile blue chloride shows promise for investigation in the field of nonlinear optics.

Sulfidefluor 7-AM is a stable fluorescent probe specifically designed for the detection of hydrogen sulfide (H2S). This compound features an azide group and participates in click chemistry techniques, including copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules, as well as strain-promoted azide-alkyne cycloaddition (SPAAC) with DBCO or BCN substrates. It serves as a valuable tool for studying H2S dynamics in biological systems and facilitates the development of H2S-related research applications.

Thionin acetate is a cationic histological dye known for its metachromatic properties. It exhibits antibacterial activity and is commonly used in biological staining applications. This compound is effective in visualizing cell structures and can be applied in various histological and cytological studies.

Carmoisine, an azo dye, is primarily utilized as a colorant in various food applications. This compound exhibits strong coloring properties, making it ideal for use in the food and beverage industry. Research on Carmoisine may also extend to studies investigating its safety and regulatory aspects as a food additive.

8-Aminopyrene-1,3,6-trisulfonic acid trisodium acts as an anionic fluorescent dye, exhibiting strong fluorescence with excitation at 425 nm and emission at 503 nm in pH 7.4 phosphate-buffered saline. Its fluorescence intensity remains stable across a pH range of 4 to 10 and is preserved when immobilized in hydrogel matrices through copolymerization. This compound is particularly useful in biochemistry for applications such as glucose sensing, contributing to various sensor technologies.

Pararosaniline hydrochloride is a basic dye that functions as a biological stain to visualize and track specific proteins. This compound exhibits pH sensitivity, with optimal staining occurring at a pH of 0.48 and a maximum absorption wavelength (λmax) of 549 nm. Additionally, Pararosaniline hydrochloride acts as a potent modifier of RNA splicing, making it useful in molecular biology research. It has applications in various analytical contexts, including the detection of sulfur dioxide and formaldehyde, as well as in the staining of bacteria and other microorganisms.

Solvent Blue 35, also known as Sudan Blue II, is a blue solvent dye primarily employed for coloring specific diesel fuels. This compound exhibits excellent solubility in organic solvents, making it useful in various industrial applications, including dyeing processes and as a tracer in fuel analysis. Its distinctive color properties allow for effective monitoring and identification in fuel-related research.

Sudan III is a disazo dye that exhibits hydrophobic characteristics. It is primarily utilized in the staining of lipids in biological samples, facilitating the visualization of fat-containing tissues under a microscope. This compound is widely applied in histological studies and various biochemical assays to analyze lipid distribution and metabolism in research settings.

Nuclear Fast Red is an anthraquinone dye that serves as a fluorescent probe targeting guanine. As a highly sensitive "off/on" probe, it is capable of detecting guanine with increased specificity. Additionally, Nuclear Fast Red is utilized as a histochemical and colorimetric reagent for calcium staining, often in combination with aluminum ions as a red nuclear counterstain. Its applications span various fields of biological research, including histology and nucleic acid detection.

9-Fluorenylmethyl carbazate serves as a fluorescent labeling agent primarily used for the fluorimetric detection of glycans. Its ability to form stable fluorescent derivatives allows for sensitive and specific analysis in glycan profiling. This reagent is essential in various applications including carbohydrate biochemistry and glycomics research.

Patent Blue V calcium salt is a triarylmethane dye primarily used for tissue staining and lymphatic tracing. It exhibits a high affinity for specific tissues, including the corneal endothelium and lymphatic system, facilitating precise surgical operations through targeted staining. This compound is commonly employed in ophthalmic procedures, such as graft staining in Descemet's membrane endothelial keratoplasty, and for localizing lymphatic drainage during sentinel lymph node biopsies in oncology.

Fast Red TR Salt Hemi (Zinc Chloride) is a diazonium dye known for its vivid red coloration. This reagent is primarily utilized in histochemical staining applications, enabling the visualization of target molecules in biological samples. Its unique properties make it suitable for various research applications, including immunohistochemistry and molecular biology studies.

Direct Blue 71 is a fluorescent dye recognized for its ability to bind effectively to cotton fabrics. It exhibits strong adsorption properties and can be efficiently removed from aqueous solutions using palm ash. This compound is useful in research applications involving textile dyeing and environmental studies related to dye removal processes.

Acid Red 94 lactone is a multifunctional dye utilized for various biological research applications. This dye facilitates the observation and analysis of cell structures, tracking of biomolecules, evaluation of cell functions, and differentiation of cell types. It plays a crucial role in detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Additionally, Acid Red 94 lactone is applicable in traditional sectors such as textile dyeing and emerging fields including functional textile processing, food pigmentation, and dye-sensitized solar cells.

Eosin 5-isothiocyanate serves as a multifunctional dye, primarily utilized for its ability to selectively label and visualize biological structures. This reagent is essential in a variety of biological applications, including the observation and analysis of cell morphology, tracking of biomolecules, and differentiation of cell types. In addition, it aids in evaluating cell functions, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Beyond biological research, Eosin 5-isothiocyanate finds utility in textile dyeing, functional textile processing, food pigmentation, and dye-sensitized solar cells.

o-Cresolphthalein complexone is a multifunctional dye that primarily serves as a pH indicator and chelating agent. It is employed extensively in biological experiments to visualize cell structures, track biomolecules, and evaluate cellular functions, making it a valuable tool in both basic research and clinical diagnostics. Additionally, its applications extend to traditional textile dyeing and innovative areas such as food pigmentation and dye-sensitized solar cells, highlighting its versatility across various scientific fields.

Fluorescent Brightener 220 is a fluorescent dye known for its ability to enhance the brightness of various substrates. This compound exhibits strong absorption and fluorescence properties, making it ideal for applications in microscopy, flow cytometry, and fluorescent imaging. It is widely used in biological research to improve the visibility of cellular structures and to tag biomolecules for detection in complex samples.

Sudan red 7B is a non-fluorescent dye primarily used for staining lipids in tissue samples. Its affinity for fat bodies makes it an essential reagent in histological studies for visualizing lipid presence and distribution. Researchers utilize Sudan red 7B in various applications, including oil droplet detection and fat content analysis in biological specimens.

Reactive Red 180 is a fluorescent dye that demonstrates strong adsorption capabilities to single-walled carbon nanotubes (SWCNTs) via electrostatic interactions. This property facilitates the effective separation of residual dyes in various applications. Reactivity and fluorescence make it suitable for studies involving dye removal in environmental research and materials science.

Pigment Yellow 12 is a disazomethine dye known for its solid-state fluorescence properties. This compound exhibits significant color brilliance and stability, making it suitable for various applications in biological research, including staining and imaging. Its unique fluorescence characteristics allow for enhanced visualization in diverse experimental setups.

Light Green SF Yellowish, also known as Acid Green 5, is a triarylmethane dye primarily utilized for histological staining. It selectively targets mitochondria and collagen, making it an essential component in Papanicolaou staining protocols. Additionally, Light Green SF Yellowish demonstrates notable biological activity by inhibiting growth in Osborne-Mendel rats and inducing injection-site fibrosarcomas with prolonged subcutaneous administration. Its application extends to studies investigating pulmonary tumorigenesis, where it has been shown to improve survival rates and increase total lung tumor incidence in C3HeB/FeJ mice.

12-(7-Nitrobenzofurazan-4-ylamino)dodecanoic acid is an amine-reactive fluorescent dye that demonstrates strong photostability and a high quantum yield. This compound facilitates protein labeling and cellular imaging, making it valuable for studies in protein-protein interactions, tracking cellular processes, and visualizing biological structures. Its unique fluorescent properties contribute to enhanced signal detection in various applications, including microscopy and flow cytometry.

Direct Red 23 is a fluorescent dye primarily used for labeling and staining biological samples. It exhibits strong spectral properties that facilitate visualization in various microscopy techniques. This reagent is particularly useful in research applications involving tissue imaging and cell tracking, enhancing the understanding of cellular structures and dynamics.

C.I. Solvent Yellow 18 is a fluorescent dye that exhibits strong absorption and emission properties, making it effective for various labeling applications. Its stability in different environments allows for versatile use in a range of industries, including textiles, pharmaceuticals, food, cosmetics, plastics, paint, ink, photography, and paper. This compound is particularly useful in research settings for fluorescence microscopy and other analytical techniques requiring robust dye performance.

Victoria Blue R is a multifunctional dye primarily utilized in biological research. It facilitates the observation and analysis of cell structures, biomolecule tracking, and cell function evaluation, making it essential for distinguishing cell types and detecting biomolecules. Its diverse applications extend from basic scientific research to clinical diagnostics while also finding use in traditional textile dyeing and innovative areas such as functional textiles, food pigments, and dye-sensitized solar cells.

Acridine Yellow G is a versatile dye primarily targeting cellular components for visualization and analysis. This dye plays a critical role in biological research, enabling the observation of cell structures, tracking of biomolecules, evaluation of cell functions, and differentiation of cell types. Its applications extend from foundational scientific investigations to clinical diagnostics and are relevant in fields such as tissue pathology and microbiology. Additionally, Acridine Yellow G is utilized in various industries, including textile dyeing, food pigmentation, and the development of dye-sensitized solar cells.

C.I. Pigment Yellow 110 is a fluorescent dye renowned for its exceptional stability across various matrices. Its chemical resilience allows it to maintain color integrity in applications spanning textiles, medicine, food packaging, cosmetics, plastics, and more. This versatile colorant is leveraged in diverse research applications, including photophysical studies and material science.

Pigment Yellow 139 is a biodye that serves as a vital indicator in various biological applications. It exhibits excellent stability and vivid coloration, making it suitable for use in histological staining and analytical assays. This compound is commonly employed in research settings to enhance visualization of cellular components and support studies in cellular biology and biochemistry.

Pigment Yellow 154 is a fluorescent dye utilized for various biological applications. This compound exhibits strong fluorescent properties, making it valuable for labeling and imaging in cellular and molecular biology research. Its stability and brightness enhance visibility in a range of experimental settings, facilitating studies in cellular dynamics and biomolecular interactions.

Naphthol Green B is an iron-complex dye utilized primarily in textile applications such as wool, silk, and polyamide dyeing. This compound exhibits strong binding properties to iron, making it suitable for various analytical and industrial processes. Additionally, Naphthol Green B can be employed in the fabrication of electrochemical sensors for the detection of hydrogen peroxide (H2O2), showcasing its versatility in chemical research and biosensing applications.

Fast Red Violet LB is a specialized dye for the histological staining of tartrate-resistant acid phosphatase (TRAP). This reagent is also capable of staining for alkaline phosphatase (ALP) activity, making it valuable in studies involving bone and immune cell research. Its precise application allows for clear visualization and assessment of phosphatase activity in various tissue samples.

Crystal Ponceau 6R is a red azo dye that primarily targets proteins for staining applications. It is commonly used in histology, particularly for staining fibrin in the Martius, Scarlet, and Blue (MSB) Trichrome stain protocol. This reagent plays a crucial role in visualizing tissue structures and protein localization in various biological specimens. Its application in histological analysis enhances the clarity and contrast of fibrous tissue components.

Basic Red 46 is a fluorescent dye primarily used for staining and imaging applications. This compound exhibits high affinity for biological tissues, making it valuable in histological studies and cytological analyses. Additionally, Basic Red 46 can be utilized in environmental research, particularly with intermittent adsorption systems, where it can be effectively removed from aqueous solutions using tree ferns as biosorbents. Its unique properties lend utility in various fluorescence-based assays and analytical techniques.

Solvent Yellow 98 is a synthetic yellow dye that primarily targets the dyeing of various plastic materials. It exhibits excellent color stability and is commonly utilized in the production of colored plastics and resins. Its application extends to a variety of industries, including packaging and consumer goods, where vibrant coloring and lightfastness are essential.

Mito-PN is a multifunctional dye designed for biological applications. This compound plays a crucial role in enhancing the visualization of cell structures, tracking biomolecules, and evaluating cell functions. It is beneficial for distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Mito-PN serves as an essential tool in both fundamental research and clinical diagnostics.

Chrysoidine G free base is a multifunctional dye targeting various biological applications. This compound serves as an effective tool in biological experiments for visualizing and analyzing cell structures, tracking biomolecules, and distinguishing between cell types. Its versatility extends beyond basic research to include clinical diagnostics and applications in tissue pathology, as well as monitoring microorganisms. Additionally, Chrysoidine G is utilized in traditional textile dyeing, food pigments, and innovative fields such as dye-sensitized solar cells.

Solvent Orange 62 is a multifunctional dye that exhibits versatile properties essential for biological experimentation. This dye facilitates the observation and analysis of cellular structures, tracking of biomolecules, evaluation of cell functions, and differentiation of cell types. Its applications span from fundamental scientific research to clinical diagnostics, while also extending to traditional uses in textile dyeing and innovative sectors such as food pigmentation and dye-sensitized solar cells.

Nitro Blue Diformazan is a multifunctional dye utilized primarily for biological research. Known for its capability to visualize and analyze cellular structures and functions, this dye facilitates the tracking of biomolecules, differentiation of cell types, and detection of various biomolecules. Its applications extend across fundamental scientific studies, clinical diagnostics, and traditional fields, including textile dyeing, functional textile processing, and food pigmentation. Additionally, Nitro Blue Diformazan has potential uses in innovative technologies such as dye-sensitized solar cells.

Ru(bpy)2(phen-ITC)(PF6)2 is a multifunctional ruthenium-based dye that serves as a valuable tool in various biological research applications. This compound is adept at facilitating the observation and analysis of cell structures, tracking biomolecules, and assessing cellular functions. It is instrumental in distinguishing cell types, detecting biomolecules, and examining tissue pathology, thereby enhancing diagnostics in both basic and clinical research. Additionally, this dye finds use in traditional industries such as textile dyeing, as well as in innovative applications including functional textiles, food pigmentation, and dye-sensitized solar cell technologies.

Fast Red TR napadisylate is a versatile dye extensively employed in biological research. It enhances the visualization of cellular structures, facilitates the tracking of biomolecules, and aids in the evaluation of cell functions. The compound is instrumental in distinguishing cell types, detecting biomolecules, and studying tissue pathology, making it valuable for both basic and clinical research applications. Additionally, Fast Red TR napadisylate finds use in various traditional and emerging fields, including textile dyeing and dye-sensitized solar cells.

BCIP dipotassium is a versatile dye widely utilized in biological research. Its primary role involves assisting researchers in observing and analyzing cellular structures, tracking biomolecules, and evaluating cellular functions. BCIP dipotassium is integral to distinguishing cell types, detecting biomolecules, and studying tissue pathology. Beyond basic research, its applications extend into clinical diagnostics, traditional textile dyeing, food pigments, and emerging areas such as functional textile processing and dye-sensitized solar cells.

10-Dodecylacridine Orange Bromide is a multifunctional dye primarily used for staining in biological research. It aids in the observation and analysis of cell structures, tracking of biomolecules, and evaluation of cell functions. This dye is applicable in distinguishing cell types, detecting biomolecules, studying tissue pathology, and monitoring microorganisms. Beyond its utility in scientific research, it also finds applications in traditional textile dyeing and emerging fields such as food pigments and dye-sensitized solar cells.

Hide Powder Azure is a multifunctional dye primarily used for biological applications. Its ability to selectively stain cell structures enables researchers to observe, analyze, and distinguish between various cell types and monitor biomolecule interactions. This dye is essential for applications ranging from basic scientific research and clinical diagnostics to areas like tissue pathology and microbial monitoring. Additionally, it finds utility in traditional textile dyeing and emerging fields such as functional textiles, food coloring, and dye-sensitized solar cells.

4-Carboxy-pennsylvania green is a multifunctional dye that targets various cellular components for visualization and analysis. It exhibits key biological activities that aid in the observation of cell structures, tracking of biomolecules, and differentiation of cell types. This dye is valuable in numerous research applications, including cellular function evaluation, tissue pathology studies, and microbial detection. Additionally, it has potential uses in emerging fields such as functional textiles, food pigmentation, and dye-sensitized solar cells.