"SIGMA ALDRICH MICROSCOPY"

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

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan Red 7B has been used to stain the fat bodies of Ostrinia nubilalis (Hübner) larvae. Sudan red 7B, also known as fat red, is a non-fluorescent stain.[2] It is effectively used to stain lipids and is used to indicate the presence of suberin in cell walls.[2][3][4] Sudan red 7B acts as a marker for formosan subterranean termite, Coptotermes fornosanus Shiraki.

Supplier: SIGMA ALDRICH MICROSCOPY

Solvent Blue 59, Dye content 98 % (1,4-Bis(ethylamino)-9,10-anthraquinone; Atlasol Blue 2N; Sudan Blue)

Supplier: SIGMA ALDRICH MICROSCOPY

5-(Iodoacetamido)fluorescein. ≥90% (HPLC) (5-IAF)

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan black B, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Ozone-scavenging reagent that reacts rapidly with ozone. Potassium indigotrisulfonate has been used: In colorimetric method of measurement of atmospheric ozone, for measuring residual aqueous ozone by gas diffusion flow injection analysis, to determine O₃ concentration in water.

Supplier: SIGMA ALDRICH MICROSCOPY

New methylene blue N has been used as a photosensitizer for the photodynamic inactivation of Candida albicans.

Supplier: SIGMA ALDRICH MICROSCOPY

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.

Supplier: SIGMA ALDRICH MICROSCOPY

Nitro Blue Tetrazolium is a tetrazole compound with two tetrazole rings.

Supplier: SIGMA ALDRICH MICROSCOPY

Orcein, Sigma-Aldrich®

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Ethyl viologen dibromide (1,1-diethyl- 4,4-bipyridinium dibromide) has been used as an internal standard in analysis of paraquat and diquat in the serum using high-performance liquid chromatography.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Methyl Purple,in H2O (Methyl Purple indicator solution)

Supplier: SIGMA ALDRICH MICROSCOPY

Wright′s Stain solution is commercially available and is generally used in hematology. Its preparation involves heating methylene blue with sodium bicarbonate and combining the mixture with eosin. It is alkaline, hence, its concentration is continuously changing due to the progressive oxidizing action of the alkali. Therefore, Giemsa′s stain is added to preserve the azurophilic properties of polychrome dyes.

Supplier: SIGMA ALDRICH MICROSCOPY

Reagent for aluminium. Aurintricarboxylic acid readily polymerises in aqueous solution, forming a stable free radical that inhibits protein-nucleic acid interactions. It is a potent inhibitor of ribonuclease and topoisomerase II by preventing the binding of the nucleic acid to the enzyme. It stimulates tyrosine phosphorylation processes including the Jak2/STAT5 pathway in NB2 lymphoma cells, ErbB4 in neuroblastoma cells, and MAP kinases, Shc proteins, phosphatidylinositide 3-kinase and phospholipase C in PC12 cells. Aurintricarboxylic acid inhibits apoptosis in many cell types. Its neuroprotective effect, perhaps due to its ability to prevent down-regulation of Ca²⁺ impermeable GluR2 receptors or to its ability to inhibit calpain, a Ca²⁺-activated protease that is activated during apoptosis.

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for use in the Stoval and Black method for demonstrating Negri bodies in the central nervous system of rabid animals.