326 Results for: "VARLP080520VARI00001"

Supplier: SIGMA ALDRICH MICROSCOPY

3-Methoxydiphenylamine can be used in the preparation of 3- methoxydiphenylamine-4-diazonium salts (MDP-4-DS) and the corresponding diazoresins.[1] Diazonium salts and diazoresins find applications in dyes, stains, indicators, general laboratory use, and industrial applications.

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1-Iodo-3,5-dinitrobenzene 97%, Sigma-Aldrich®

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Methyl violet 2B, Sigma-Aldrich®

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May Grunwald's eosin-methylene blue in methanol, Sigma-Aldrich®

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Primuline, also known as direct yellow 59 or primuline yellow, is considered to be a more sensitive and non-destructive dye for lipids.

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8-Anilino-1-naphthalenesulphonic acid, Sigma-Aldrich®

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NLO material.

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Bromochlorophenol blue 95% (dye content), Sigma-Aldrich®

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Alcian blue 8GX, certified, Sigma-Aldrich®

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Esterases are ubiquitous in nature and encompass a series of different enzymes acting upon select substrates.

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Azure B (azure I) ≥89% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®

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Used for the preparation of electrically conducting glasses. Used to make solutions for the separation of RNA from DNA by density gradient centrifugation.

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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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Acridine Yellow G (AYG) is an organic dye with photophysical properties. It is widely used in optics, medicine and photovoltaic cells.

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7-Amino-4-(trifluoromethyl)coumarin (AFC) is a novel fluorescent marker used for the detection of proteinases. Suitable as laser dye.

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Bicinchoninic acid is used for the determination of protein concentration. It is responsible for the making of intense purple complex with cuprous ion (Cu+) in the presence of alkaline conditions. The amount of Cu+ is in relation with the protein concentration.

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Isopentyl nitrite, also known as isoamyl nitrite, is an oxidant, and nitrosating agent for phosphoramidites which rearrange into phosphotriesters during nitrosation.

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Fast black K (C.l. 37190) is a lipophilic amino-substituted monoazo dye. It is also known as Brentamine fast black K salt.

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Haematoxylin, Sigma-Aldrich®

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Dihydrorhodamine 123 has been used for the detection of free intracellular radicals or ROS (reactive oxygen species).

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Bathocuproin sulphonate disodium salt hydrate for spectrophotometric determination of Cu and Fe, Sigma-Aldrich®

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Methyl green zinc chloride salt, Sigma-Aldrich®

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Fast Garnet GBC base has been used as a stain in papain activity inhibition assay, to stain for tryptase-activity and chymase-like activity, to gel stain for esterolytic activity.

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Bismarck Brown R has been used as an adsorbate and is used in dye decoloration experiment.

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Methyl green zinc chloride salt, Sigma-Aldrich®

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Synonyms: Solvent blue 35

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Pyronin B is a chromogenic reagent, and is optimal for myeloperoxidase staining, which is useful in cytomorphological diagnosis and also in leukaemia categorisation.

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Nuclear Fast Red, Sigma-Aldrich®

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Reagent for assay of indole product of apotryptophanase and tryptophanase. DMAC produces colored adducts with flavanols for subsequent HPLC. It has been used in a chromogenic method for quantifying proanthocyandines in cranberry powder.

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Para red is a biological stain. It is used as a fat soluble chemical dye and food additive. It is a banned colorant and a number of analytical techniques have been developed to detect it in food. Para Red may be used to make standards for analysis.