1072 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

4-Phenoxyphthalonitrile,98%

Supplier: SIGMA ALDRICH MICROSCOPY

4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate,97% (Benzaldehyde 2,4-disulfonic acid disodium salt; Sodium 4-formylbenzene-1,3-disulfonate).

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for use in the Silver Stain (Steiner-Steiner) kit. Hydroquinone, 0.5 g each, with excipients.

Supplier: SIGMA ALDRICH MICROSCOPY

4-Nitroguaiacol potassium salt hydrate,98% (2-Methoxy-4-nitrophenol potassium salt)

Supplier: SIGMA ALDRICH MICROSCOPY

Azure B eosinate, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

This acid alcohol is part of Flourecent Stain Kit for Mycobacteria (Cat. No. 05151). It is used for decolorising.

Supplier: SIGMA ALDRICH MICROSCOPY

An intracellular fluorescent pH indicator.

Supplier: SIGMA ALDRICH MICROSCOPY

4-tert-Butylphthalic anhydride has been used to synthesise novel yellow quinophthalone dyes for LCD colour filters.

Supplier: SIGMA ALDRICH MICROSCOPY

Inhibits mitochondrial Ca2+ uniporter; capsaicin antagonist; blocks VR1 vanilloid receptor-coupled ion channels.

Supplier: SIGMA ALDRICH MICROSCOPY

Sulforhodamine B has been used as a dye in the MCF-7 (human breast adenocarcinoma cell line) cell proliferation assay.

Supplier: SIGMA ALDRICH MICROSCOPY

Ethidium homodimer is a red fluorescent dye. It cannot cross an intact plasma membrane, but can easily pass through a damaged plasma membrane. Ethidium homodimer is used to check membrane integrity. One molecule of EthD-1 will non-selectively bind four base pairs in dsDNA.

Supplier: SIGMA ALDRICH MICROSCOPY

Nuclear Fast Red is suitable for the determination of calcium. It is suitable for use in prussian blue staining in neural progenitor cells. It may be employed as highly sensitive 'off/on' fluorescent probe for the determination of guanine. Nuclear fast red (2-anthracenesulfonic acid, 4-amino-9,10-dihydro-1,3-dihydroxy-9,10-dioxo-, monosodium salt) may be used as selective complexing agent for the simultaneous determination of copper and bismuth by adsorptive stripping voltammetry.

Supplier: SIGMA ALDRICH MICROSCOPY

Pyrocatechol Violet (PV) is a sulfone phthalein dye. It chelates metal ions. The metal-PV complex is bluish-violet in colour.

Supplier: SIGMA ALDRICH MICROSCOPY

Indicator for organolithium assay.

Supplier: SIGMA ALDRICH MICROSCOPY

2-(Ethylthio)benzothiazole,97%

Supplier: SIGMA ALDRICH MICROSCOPY

4',5'-Dibromofluorescein, Dye content 95 % (Solvent Red 72)

Supplier: SIGMA ALDRICH MICROSCOPY

Procion Red has been used in the visualization of osteocyte canalicular system. It has been used as an adsorbate in the biosorption by Bacillus subtilis.

Supplier: SIGMA ALDRICH MICROSCOPY

Nuclear fast red dye has anthraquinonic nature and is used either alone or in combination with other dyes. It is mainly used for staining of nuclei.

Supplier: SIGMA ALDRICH MICROSCOPY

Pinacyanol chloride, (1,1'-Diethyl-2,2'-carbocyanine chloride; 2,2'-Trimethinequinocyanine chloride; Quinaldine blue).

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

A dual-emission potential-sensitive probe that can be used to measure mitochondrial membrane potential. JC-1 is a green-fluorescent (λex 520 nm) monomer at low membrane potential. At higher potentials, JC-1 forms red-fluorescent (λem 596 nm ) "J-aggregates," which exhibit broad excitation and very narrow emission spectra. The ratio of red to green fluorescence of JC-1 is dependent only on membrane potential, and not influenced by mitochondrial size, shape, or density.

Supplier: SIGMA ALDRICH MICROSCOPY

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.

Supplier: SIGMA ALDRICH MICROSCOPY

Sulforhodamine 101 acid chloride has been used in an encapsulated fluorescent probe as a model drug to study drug-delivery properties of rhamnogalacturonan-I based microcapsules. It has also been used in confocal imaging as an astrocyte specific dye.

Supplier: SIGMA ALDRICH MICROSCOPY

In Schaeffer-Fulton`s method, a primary stain-malachite green is forced into the spore by steaming the bacterial emulsion. Malachite green (Schaeffer & Fulton`s Spore Stain A: Cat. No. 90903) is water soluble and has a low affinity for cellular material, so vegetative cells may be decolorized with water. Vegetative cells are then counterstained with safarin. The components and the method are also available as kit (Cat. No. 04551).
Schaeffer & Fulton`s Spore Stain B: SafarinO 5 g/l in water

Supplier: SIGMA ALDRICH MICROSCOPY

Standard procedure and microwave procedure included in package insert.
When treated with periodic acid, glycols are oxidized to aldehydes. After reaction with Schiff′s Reagent (a mixture of pararosaniline and sodium metabisulfite), a pararosaniline adduct

Supplier: SIGMA ALDRICH MICROSCOPY

Metanil yellow has been used for staining of leukocyte granules. It is also used as a counterstain in microscopic sections.

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine orange is a metachromatic dye which can stain DNA, RNA and acid glycosaminoglycans. At low concentrations, it intercalates into DNA and precipitates RNA. However, at high concentrations it denatures and precipitates both RNA and DNA. Acridine orange is also used to analyse autophagy. It enters into acidic organelles in a pH-dependent manner. At neutral pH, acridine orange gives a green fluorescence and in acidic conditions, it accumulates in acidic organelles giving a bright red fluorescence.

Supplier: SIGMA ALDRICH MICROSCOPY

Wright stain, a modified romanowsky stain, is intended for differential staining of the cellular elements of blood. It comprises polychrome methylene blue and eosin B. Upon staining blood films with wright stain, the white blood cell nucleus and cytoplasm display characteristic blue or pink hues.

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for use in the Sigma Masson Trichrome Procedure, HT15.

Supplier: SIGMA ALDRICH MICROSCOPY

Erythrosin yellowish, Sigma-Aldrich®