1057 Ergebnisse für: "SIGMA ALDRICH MICROSCOPY"

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1,2-Dichloro-4,5-dinitrobenzene,98%

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Methyl green is a synthetic, triphenylmethane-type cationic dye related to ethyl green mainly used as DNA stain in histochemistry. It possesses aniline rings with different degrees of methylation. The dye binds specifically to the A-T rich regions of the major groove of DNA with the help of two positive charges. Methyl green in combination with pyronin is extensively used to stain RNA and plasma cells in tissue sections and cytologic preparations.

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4-Nitrophthalonitril 99%, Sigma-Aldrich®

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Fluoromount™ Aqueous Mounting Medium for use with fluorescent dye-stained tissue.

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In Schaeffer-Fulton`s method, a primary stain-malachite green is forced into the spore by steaming the bacterial emulsion. Malachite green is water soluble and has a low affinity for cellular material, so vegetative cells may be decolorized with water. Ve

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General purpose nuclear stain, regressive type. Used with hematoxylin and eosin staining.

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DPX Mountant for histology has been used as a slide mountant to fix sections.

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3,4-Pyridinedicarboxamide,98% (Cinchomeronamide)

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8-Anilino-1-naphthalinsulfonsäure, Sigma-Aldrich®

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Tetrachlorophthalonitrile,98%

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N,N,N′,N′-Tetramethyl-p-phenylenediamine dihydrochloride (TMPD) is a redox mediator used in the oxidase test for detecting bacterial cytochrome c oxidases. TMPD is commonly used to perform the oxidase test for the colorimetric identification of pathogenic and non-pathogenic bacteria.

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Phosphomolybdic acid solution,ready-to-use spray and plunge reagent, for chromatography (Molybdophosphoric acid)

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Methylene Blue solution has been used to study structural alterations and p53 immune-expression in rats.

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It has been used in synthesis and characterization of Fe-doped aluminosilicate nanotubes with electron conductive properties.

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This is a mounting medium (contains 45% acrylic resin and 55% xylenes) used in microscopy. It is an adhesive and specimen preservative that can be used manually and in automated coverslipping equipment. Special purpose adhesive and sealant for use with glass, non plastic and other non-reactive materials.

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A fluorescent conjugate of bisindolylmaleimide that specifically binds phosphokinase C at the active site. Can monitor enzyme activation and translocation. This reagent is not membrane permeable. The diacetate form (Sigma No. F9801) is membrane permeable.

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Pyronin stains the cytoplasm of plasma cells and most nucleoli red.

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Methyl blue (C.l. 42780) is a triaminotriphenylmethane dye with each amino group carrying a monosulfonated phenyl substituent. It is also known as Water blue, Acid blue 93, Cotton blue, Poirriers blue, and Aniline blue water soluble.

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When blood films are stained using Wright-Giemsa Stain, the white blood cell nucleus and cytoplasm take on the characteristic blue or pink coloration. The combination of purified eosin and thiazine dyes in the product eliminates inconsistent staining and yields reproducible chromogenic responses.

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Brilliant Blue R has been used in staining of gels after electrophoresis. It has also been used to determine protein in the protein bodies. For detection of protein bands following electrophoresis.

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Ethylorange Natriumsalz 90% (Farbstoffgehalt), Sigma-Aldrich®

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Brilliant Green is a dye and an antiseptic agent.

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A negatively charged polymethine dye that forms noncovalent fluorescent complexes with proteins.

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5(6)-Carboxyfluorescein diacetate Mixed isomers. ≥90% (HPLC)

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A preweighed vial containing 50 mg o-Dianisidine. o-Dianisidine (3,3′-dimethoxybenzidine) is a peroxidase substrate suitable for use in ELISA procedures. This substrate produces a soluble end product that is yellow-orange in color and can be read spectrophotometrically at 405 nm. The reaction may be stopped with 5 M HCl.

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Coumarin is also known as benzoαpyrone. Coumarin 7 is a laser dye that is usually found in the nature. Its derivatives are used in medicine and chemistry. It is present in plants in the form of glucosides. Coumarin acts as an antimutagen as it controls the mutagenic effects of several chemicals like aflatoxin B1and physical agents like ultraviolet light. Suitable as a laser dye.

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Adrenochrome has been used to study the effect of adrenochrome on coronary artery constriction in the rat heart.

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meso-Tetraphenylporphin ≥99%, Sigma-Aldrich®

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1,1′-Diethyl-2,2′-cyanine iodide has been used as an absorber in a method to correct the fluorescence excitation-emission matrix (EEM).

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Fluorescein-5-EX N-hydroxysuccinimide ester has been used for the labeling of antibodies.