1072 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Substrate for the histochemical demonstration of acid and alkaline phosphatase. Substrate for the fluorometric assay of acid and alkaline phosphatases. Demonstration of acid phosphatase in paraffin embedded tissue. Cytofluorometric assay of acid phosphatase in single living cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Novec™ 7100 fluid consists of two inseparable isomers ((CF₃)₂CFCF₂OCH₃) and CF₃CF₂CF₂CF₂OCH₃) with essentially identical properties. Ideal for vapor degreasing applications as a neat (pure), azeotropic component and co-solvent parts cleaner.

Supplier: SIGMA ALDRICH MICROSCOPY

Neutral red (C.I. 50040) is a protonated diaminophenazine dye. It is aminodimethylaminomethylphenazinehydrochloride, C15H17N4Cl.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Proflavine is a small, amphipathic, acridine-derived fluorescent dye.Proflavine hemisulfate is used as a rapid stain for cytological studies of biological specimens. It stains cytoplasmic structures and nuclei. Proflavine has the capability to intercalate double stranded DNA.

Supplier: SIGMA ALDRICH MICROSCOPY

3,4,5-Trihydroxybenzamide 98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

May-Grünwald stain is a Romanowsky neutraldye stain based on the combination ofmethylene blue azures as the basic dyecomponent and eosin as the acid dyecomponent.It is intended for use in staining blood films orbone marrow films. It is used routinely for diagnostic purposes in hematology.

Supplier: SIGMA ALDRICH MICROSCOPY

Trypan Blue (C.l. 23850) is a large, tetrasulfonated anionic, hydrophilic dye. It is also known as diamine blue 3B. Trypan blue has been used as a dye in trypan blue exclusion assay/cell viability assay to detect dead cells.

Supplier: SIGMA ALDRICH MICROSCOPY

1-Heptyl-4-(4-pyridyl)pyridinium bromide,95%

Supplier: SIGMA ALDRICH MICROSCOPY

Chief ingredient of Giemsa Stain.

Supplier: SIGMA ALDRICH MICROSCOPY

1,4-Dimethylpyridinium p-toluenesulfonate,98%

Supplier: SIGMA ALDRICH MICROSCOPY

2-(Phenylsulfonyl)ethanol,97%

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine is a small cationic and planar dye that mainly binds to RNA and DNA. These dyes are strongly fluorescent. It resembles the structure of xanthene except that the heteroatom is nitrogen, not oxygen. Acridine is suitable for nucleic acid staining, particularly for cell cycle determination. Acridines are used as fluorescent materials for visualisation of biomolecules, and in laser technologies.

Supplier: SIGMA ALDRICH MICROSCOPY

Density gradient medium is suitable for cell and subcellular organelle isolation, virus purification, and isolation of lipoproteins and macromolecules.

Supplier: SIGMA ALDRICH MICROSCOPY

1-Amino-4-bromoanthraquinone-2-sulphonic acid sodium salt, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,9-Dimethyl-Methylene Blue zinc chloride double salt has been used for the quantification of sulfated glycosaminoglycans.

Supplier: SIGMA ALDRICH MICROSCOPY

Propyl-3,4,5-trihydroxybenzoate ≥98% (by HPLC) for histology and pathology, for diagnostic, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-(2-Pyridylazo)resorcinol (PAR) is a monosodium salt(1), dibasic acid that forms the protonated complexes with most metal ions.

Supplier: SIGMA ALDRICH MICROSCOPY

N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride ≥95%, powder, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Naphthol AS phosphate disodium salt is intended for use as a substrate for the histochemical demonstration of acid and alkaline phosphatase activities.

Supplier: SIGMA ALDRICH MICROSCOPY

3,3′-Diethylthiacyanine iodide (DTTHCI) is a fluorophore. 3,3′-Diethylthiacyanine iodide has been used to investigate the kinetics of fluorescence staining in bacteria (two Gram-negative and two Gram-positive species).

Supplier: SIGMA ALDRICH MICROSCOPY

Brilliant Blue R (C.l. 42660) is a triaminotriarylmethane dye with two amino groups being benzylated and one phenylated. It is also known as brilliant indocyanine 6B and coomassie blue R250. Brilliant Blue R has been widely used for protein band detection after SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis).

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Osmium tetroxide (OsO₄) is a heavy tetrahedral, symmetrical molecule composed of osmium, a third-row transition metal. Osmium tetroxide is both a dye, and a non-coagulant fixative agent in electron microscopy primarily used for the examination of biological tissue components in the histopathology laboratory. Specimens are postfixed with osmium testroxide to ensure preservation of the lipids.

Supplier: SIGMA ALDRICH MICROSCOPY

Giemsa stain is a versatile differential stain that is widely used in hematology for blood and bone marrow specimens, clinical cytology specimens, bacteriology, histological biopsies, and tumor samples. Giemsa's staining solution is composed of methylene blue, azure, and eosin. It is a major histological stain due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. The stain is frequently used in combination with other dye solutions: May-Grünwald’s solution for Pappenheim (MGG) and Wright-Giemsa.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV has been used to in en-face staining of aorta, stains the lipid rich plaques. It has also been used to stain lipids atherosclerotic lesions of mice.

Supplier: SIGMA ALDRICH MICROSCOPY

Ehrlich’s reagent III, Loeffler’s Methylene Blue. Methylene Blue was earlier recognized as a good nuclear stain, the staining solutions are always either aged or alkalized, if not both. More importantly it is an excellent stain for ribonucleic acid, which is the important stainable constituent of bacterial bodies, of lymphocyte and hemoportoal cytoplasm, and of nerve cell tigroid granules. It can also be employed in capsule stain. The capsule stain begins as a negative stain leaving the organisms colorless. The capsule are clearly seen as halo surrounding the bacterial cell. Another staining procedure is performed with nigrosin (Cat. No. 43925).

Supplier: SIGMA ALDRICH MICROSCOPY

For use in the Naphthol AS-D Chloroacetate Esterase and Naphthyl Acetate Esterase Procedures, Kits 91C and 91A.

Supplier: SIGMA ALDRICH MICROSCOPY

Building block for 'Anti-Bredt' strained molecules.

Supplier: SIGMA ALDRICH MICROSCOPY

2-Hydroxy-1,4-naphthoquinone is one among the forensic reagents used for fingerprint detection. 2-Hydroxy-1,4-naphthoquinone, produced from Lawsonia inermis, is an orange dye. It belongs to the class of naphthoquinone dyes. 2-Hydroxy-1,4-naphthoquinone is used to dye hair and to color textiles. It has antibacterial, antifungal, anti-inflammatory, antiviral and antineoplastic properties. 2-Hydroxy-1,4-naphthoquinone inhibits tumor cell growth. It stimulates the production of reactive oxygen species (ROS).