"SIGMA ALDRICH MICROSCOPY"

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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

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.

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Chrysophenine, Dye content 65 % (Direct Yellow 12)

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Disperse Yellow 3, Dye content 30 % (4-(2-Hydroxy-5-methylphenylazo)acetanilide; N-[4-(2-Hydroxy-5-methylphenylazo)phenyl]acetamide)

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.

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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.

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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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Bouin's solution is an excellent fixative for preserving soft and delicate structures. It is prepared with saturated picric acid, formaldehyde and acetic acid.

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p-Rosolic acid (C.I. 43800) is an acid-baseindicator from the triphenylmethane group. It is also known as aurin and 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone.

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Eosin B, Sigma-Aldrich®

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Fluorescent protein label.

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DPX Mountant for histology has been used as a slide mountant to fix sections.

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Coumarin is also known as benzoαpyrone. Coumarin 7 is a laser dye that is usually found in the nature. Its derivatives are used in medicine and chemistry. It is present in plants in the form of glucosides. Coumarin acts as an antimutagen as it controls the mutagenic effects of several chemicals like aflatoxin B1and physical agents like ultraviolet light. Suitable as a laser dye.

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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.

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1,1′-Diethyl-2,2′-cyanine iodide has been used as an absorber in a method to correct the fluorescence excitation-emission matrix (EEM).

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for use in Sigma Procedure 387 for the demonstration of Acid Phosphatase (TRAP).