1071 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Designed for orientation of excised surgical specimens. This method of permanently marking the margins of tissue specimens is very beneficial to surgeon and pathologists testing for skin cancer.

Supplier: SIGMA ALDRICH MICROSCOPY

Safranin O, also known as basic red 2, is a basic, cationic, and metachromatic azine dye used as a biological stain. The characteristic azine chromophore contains the phenazine, a planar, tricyclic dibenzopyrazine, which consists of two non-planar benzene rings linked by two nitrogen atoms. A delocalised positive charge, an alternation of aromatic and quinonoid structures, and diazotisable amine groups constitute the chromophoric system. c-Methylation makes this dye of moderate overall size. The trimethyl cationic form of safranine is lipophilic, whereas the dimethyl forms are weakly hydrophilic. The dye is commercially available as a chloride.

Supplier: SIGMA ALDRICH MICROSCOPY

Bis(cyclohexanone)oxaldihydrazone (Cuprizone) has been used in mice to study the effect of NG2 (neural/glial antigen 2) proteoglycan on toxic-induced demyelination. It has been used to induce demyelination in mice. It has been used to study cuprizone-induced demyelination and remyelination in the corpus callosum of mice.

Supplier: SIGMA ALDRICH MICROSCOPY

Nitrotetrazolium blue (NBT), in combination with BCIP (5-bromo-4-chloro-3-indolyl-phosphate), is required for the detection of labeled probes in western blots. It is part of the colorimetric detection assay. NBT and BCIP dyes detect alkaline phosphatase activity, thereby generating an insoluble purple dye (diformazan). The dye is visible at areas where the labeled probe has hybridised to its target.

Supplier: SIGMA ALDRICH MICROSCOPY

Toluidine Blue O (TBO) is a thiazine dye of the quinone-imine family and is cationic in nature. It has been employed in polychromatic staining of paraffin embedded plant cell walls. It is a metachromatic dye suitable for a wide variety of histological staining procedures. A metachromatic dye suitable for a wide variety of histological staining procedures. Toluidine Blue O has been used to stain a variety of specimens like mesenchymal cells, taste buds, osteoblasts, matrix, and more.

Supplier: SIGMA ALDRICH MICROSCOPY

Eosin B spirit soluble ≥95% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Suitable for detection of glycoproteins

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red Sodium Salt (PRSS) is a water-soluble anionic fluorescent dye, that possesses an extra Na ion attached with the SO3 group compared to phenol red. It is intended for use in cell culture applications. A solution of phenol red will have a yellow color at a pH of 6,4 or below and a red color at a pH of 8,2 and above.

Supplier: SIGMA ALDRICH MICROSCOPY

Phenazine ethosulfate is a cationic dye and a chemical electron acceptor. It is used in dye-linked enzyme assays. At a high pH, the dye produces free radicals, which may be the actual electron acceptors.

Supplier: SIGMA ALDRICH MICROSCOPY

N-[(3-(Anilinomethylene)-2-chloro-1-cyclohexen-1-yl)methylene]aniline monohydrochloride,94%

Supplier: SIGMA ALDRICH MICROSCOPY

Fluorescent dye.

Supplier: SIGMA ALDRICH MICROSCOPY

(3-Aminopropyl)triethoxysilane forms aminopropyl derivative of glass, an adsorbent for affinity chromatography. It is used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridisation procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

Homovanillic acid has been used as a standard in HPLC analysis. Metabolite of dihydroxyphenylacetic acid (DOPAC) by catechol O-methyltransferase; reagent for the fluorimetric determination of glucose oxidase and other oxidative enzymes.

Supplier: SIGMA ALDRICH MICROSCOPY

Bacteriochlorophyll from Rhodopseudomonas sphaeroides has been used as a standard to calibrate the high performance liquid chromatography (HPLC).

Supplier: SIGMA ALDRICH MICROSCOPY

1,4-Dimethylpyridinium iodide,99%

Supplier: SIGMA ALDRICH MICROSCOPY

2-(4-Hydroxyphenyl)-5-pyrimidinol 90%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

2,6-Diphenyl-4H-thiopyran-4-one,96%

Supplier: SIGMA ALDRICH MICROSCOPY

1-Phenyl-2,3-naphthalenedicarboxylic anhydride,98%

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Bismarck brown Y, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Brilliant cresyl blue ALD has been used for the staining of reticulocytes.

Supplier: SIGMA ALDRICH MICROSCOPY

Leukocyte Alkaline Phosphatase (LAP) kits are intended for the semi-quantitative demonstration of alkaline phosphatase activity in white blood cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Modified Giemsa stain may be used for the identification of each human chromosome by differentials staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Bromoxylenol blue, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol,97% (Bromo-PADAP).

Supplier: SIGMA ALDRICH MICROSCOPY

Acid Blue 129, Dye content 25 % (Atanyl Blue PRL)

Supplier: SIGMA ALDRICH MICROSCOPY

Disperse Blue 134, for microscopy (1,4-Bis(isopropylamino)anthraquinone; Solvent Blue 36).

Supplier: SIGMA ALDRICH MICROSCOPY

Histology slides with paraffin embedded section of mouse lung tissue containing Candida albicans.

Supplier: SIGMA ALDRICH MICROSCOPY

Gill formulation No. 2 may be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time. 4 g/L certified hematoxylin.