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Bifunctional fluorescent reagent. Cross-linking reagent.

Supplier: SIGMA ALDRICH MICROSCOPY

Fast Corinth V zinc chloride double salt, Dye content 90 % (Azoic Diazo Component 39; Azoic Diazo No. 39)

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Solution, for microscopy, concentrate according to Ehrlich, concentrated, aqueous solution (Methylene blue stain; Ehrlich's reagent III; Loeffler's Methylene Blue)

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Carmine, Sigma-Aldrich®

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Example of a cyanovinylheteroaromatic for organic nonlinear optics.

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Ethyl Violet,cationic triarylmethane dye (Basic violet 4; Ethyl purple 6B)

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Suitable as a laser dye.

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Hematoxylin solution according to Delafield is a naturally ripened alum hematoxylin with potassium alum or ammonium alum as the mordant. It is used when the counterstain doesn′t possess any acid content in it. It is suitable to be used as a nuclear stain with eosin.

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Used as a heat-induced antigen retriever on formalin-fixed paraffin-embedded (FFPE) tissue sections prior to application of antibodies.

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A cell-permeable generator of singlet oxygen.

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Alginic acid is a high molecular weight linear polymer isolated from seaweed. It is a linear β-1→4-linked polymer of n-mannuronic and L-guluronic acid. It is an acid polysaccharide present in the extracellular matrix of brown algae.

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Composition: Nigrosin 100 g/l, Formalin 5 ml/l in water

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Fluoroshield™ with PPD (p-phenylenediamine; 1,4-phenylenediamine) is an aqueous mounting medium for preserving fluorescence of tissue and cell smears.

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Glutaraldehyde bis(2,4-dinitrophenylhydrazone) analytical standard, for environmental analysis, Sigma-Aldrich®

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Benzoyl peroxide (B5907) is specifically formulated as an initiator for these resins.

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Mordant orange 1 is also known as Alizarin Yellow R, C.I. 14030. Mordant orange 1 is an azo dye. Azo dyes used as biological stains contain an azo group (−N=N−). It is used for colouring many different materials such as textile, leather, and plastics and for manufacturing paints and lacquers and for printings purposes as well.

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Wright Stain solution, for microscopy (Eosin Methylene blue solution according to Wright; Wright's eosin methylene blue)

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Epoxy embedding medium is generally used for biological tissues during study by electron microscopy. Usually, it consists of three components; Epon 812 resin, an anhydride hardener and an accelerator

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Tetrazolium blue chloride (BTC) is a colorless tetrazolium compound that upon reduction forms a colored diformazan. The reactivity has been applied to the analysis of reducing compounds including the nanomolar detection of reducing sugars and carbidopa and methyldopa. BTC has been used for histological staining of mouse coronal brain sections and rat brain sections. In combination with 4-nitrocatechol, tetrazolium blue chloride forms a ternary complex with molybdenum(VI) for extraction and spectrophotometric determination of molybdenum. It has also been used to stain Francisella tularensis cells for tularemic microagglutination test.

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Hartman′s fixative, which is also known as Davidson′s Fixative, contains acetic acid, alcohol, and formalin. It is widely used for the preservation of eye, bone marrow, breast, testis, and other tissues for histologic examination

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Water-soluble, negatively-charged spin trap used to monitor aqueous phase of SDS micelles.

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Rhodamine B is a xanthene dye, which functions as a water tracer fluorescent. It is used as a colorant in textiles and food stuffs. Rhodamine B is associated with eye, skin and respiratory tract irritation. It is used as a biomarker in oral rabies vaccine.

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Aniline blue is used to stain collagen fibers in tissue sections using the Masson′s trichrome protocol for staining multiple components. Collagen is stained blue by this method. It has also been used to stain and visualize glycosylated proteins.

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4,4′-Methylenebis(N,N-dimethylaniline) is an intermediate in dye manufacture and works as a reagent for the determination of lead. It is suitable for the qualitative assay of cyanogens.

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Used to differentiate viable cells from apoptotic cells. Live cells that are not apoptotic accumulate 6-carboxyfluorescein but do not accumulate annexin. Fluorescent wavelengths λex 492 nm; λemm 517 nm in 0.1 M Tris, pH 8.0.

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Metachromatic dye useful as a mitochondrial probe in living cells. This dye has been used to analyse mitochondria by flow cytometry, characterise multidrug resistance, and measure changes in mitochondrial mass during apoptosis in rat thymocytes.

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It is used as diagnostic assay manufacturing, hematology, histology.

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Reagent used for the generation of chemiluminescence in the presence of a reductant and oxygen; it is employed in numerous chemiluminescent assays. Lucigenin is specific for superoxide anion radical.

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Basacryl Red GL, Dye content 19 % (Basic Red 29)

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Readily polymerizes in aqueous solution, forming a stable free radical that inhibits protein-nucleic acid interactions. It is a potent inhibitor of ribonuclease and topoisomerase II by preventing the binding of the nucleic acid to the enzyme. It stimulates tyrosine phosphorylation processes including the Jak2/STAT5 pathway in NB2 lymphoma cells, ErbB4 in neuroblastoma cells, and MAP kinases, Shc proteins, phosphatidylinositide 3-kinase and phospholipase Cγ in PC12 cells. Inhibits apoptosis. It prevents down-regulation of Ca²⁺ -impermeable GluR2 receptors and inhibits calpain, a Ca²⁺ -activated protease that is activated during apoptosis.