326 Results for: "VARLP080520VARI00001"

Supplier: SIGMA ALDRICH MICROSCOPY

Methyl violet for microscopy (Bact., Bot., Hist.), indicator (pH 0.1 - 2.0), mixture of polymethylated pararosaniline hydrochlorides.

Supplier: SIGMA ALDRICH MICROSCOPY

Quinaldine red has been used as a fluorescent probe for α1-acid glycoprotein (AAG). It is also used a diagnostic assay manufacturing, hematology, histology.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan II has been used to determine its presence in commercial spices such as hot chilli food samples (LC–ESI–MS/MS).

Supplier: SIGMA ALDRICH MICROSCOPY

Chromotrope FB, also known as acid red 14 (AR14), is a bright orange-red powder. It belongs to the class of monoazides.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Sigma-Aldrich®

Supplier: VWR Chemicals

A blue counterstain often used for metachromatic staining of mast cells, cartilage, and acid mucins. Black to dark green fine powder

Supplier: SIGMA ALDRICH MICROSCOPY

Fast blue BB salt for microscopy, for histology, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Gill no.1 formulation is used as a progressive cytology stain.

Supplier: SIGMA ALDRICH MICROSCOPY

Poly-L-lysine is a positively charged amino acid polymer with approximately one HBr per lysine residue. The hydrobromide allows the poly-L-lysine to be in a crystalline form soluble in water. A small amount of product may be found in the beta structure because the HBr interferes with hydrogen bonding between amino and either the carboxyl groups or N or O containing moieties.

Supplier: SIGMA ALDRICH MICROSCOPY

Neutral red, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Methylene blue ≥82% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Ponceau BS has been used in Masson′s trichrome stain for the staining of collagen. It has also been used for eosinophil staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV, Sigma-Aldrich®

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

Erythrosin B, also called as eosin B, is a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus. Erythrosin B has been used as a dye in fluorescence lifetime imaging.

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

Fluorescein diacetate (FDA) is a non-fluorescent molecule, which is hydrolysed to fluorescent fluorescein in live cells. Dead cells cannot accumulate or hydrolyse FDA. Fluorescein diacetate has been used for the differentiation of live cells from dead cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Rhodamine B is a xanthene dye, which functions as a water tracer fluorescent. It is used as a colorant in textiles and food stuffs. Rhodamine B is associated with eye, skin and respiratory tract irritation. It is used as a biomarker in oral rabies vaccine.

Supplier: SIGMA ALDRICH MICROSCOPY

Victoria Blue R is a basic dye. It belongs to the class of diphenylnaphthylmethane dyes. Victoria Blue R has been employed in manufacture of lake pigments. It has lot of industrial applications, but it is rarely used as a biological stain.

Supplier: SIGMA ALDRICH MICROSCOPY

Thymol is generally added in the Hematoxylin and Eosin staining solution to prevent mould growth. It is also suitable for use in antimicrobial screening by the disk diffusion method. It has been used as a test compound in antifungal assay to assess the susceptibility of various fungal isolates.

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

2′,7′-Dichlorofluorescein is an oxidation-sensitive fluorescent probe. 2′7′-dichlorofluorescein diacetate is oxidized to 2′7′-dichlorofluorescein in the presence of ROS (reactive oxygen species). 2′,7′-Dichlorofluorescein has been used as an oxidation-sensitive fluorescent probe to measure ROS (reactive oxygen species) formation in cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Eosin B, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Indigo has been used as a dye to measure food consumption in drosophila. It has also been used to investigate the ability of fungal strains in the degradation and decolorisation of indigo dye.

Supplier: SIGMA ALDRICH MICROSCOPY

Fast Red TR Salt 1,5-naphthalenedisulfonate salt has been used for tartrate-resistant acid phosphatase (TRAP) staining in tissue sections. It has been used as a chromogen in APAAP (alkaline phosphatase-anti-alkaline phosphatase) procedure.

Supplier: SIGMA ALDRICH MICROSCOPY

Naphthalene black 10B (naphthol blue black, acid black 1) ~50% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

A high sensitivity dye used to detect single nucleic acid molecules. DAPI has been shown to detect a single DNA molecule in solution, and to detect femtograms of DNA in single cells and chloroplasts.

Supplier: SIGMA ALDRICH MICROSCOPY

Bromocresol purple (BCP) is an organic dye and a pH indicator. It changes from yellow (pH 5.2) to purple (6.8). BCP reacts with ammonia to yield ammonium salt. Hence, it can be used as an ammonia sensing probe.

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan III, Sigma-Aldrich®