Stains and Dyes

A variety of solutions used to selectively bind to and enhance the visibility of biological structures using color and/or fluorescence; used for histology, protein staining, electrophoresis, bacterial classification, blotting, etc.

Search Within Results

5,731 – 5,745 of 7,180 results

5,731

Ethos Biosciences Gram Stain, Decolorizer 75/25, 1gal, Ethos

75/25 Gram Decolorizer is a solvent blend designed for microbiology and general laboratory applications. Used as the decolorizing step in Gram staining procedures, it selectively removes the primary stain from gram-negative organisms while allowing gram-positive organisms to retain the crystal violet–iodine complex. The controlled 75/25 formulation provides consistent and reliable decolorization for accurate differentiation during microscopic evaluation. Ideal for routine diagnostic and research workflows, it supports dependable and reproducible Gram stain results. Supplied in chemically compatible containers, 75/25 Gram Decolorizer is suitable for clinical, research, and educational laboratory environments.

Pricing & Availability

5,732

Newcomer Supply Alcian Blue Stain 1%, pH 2.5 Aqueous, 500 ml

Newcomer Supply Alcian Blue Stain 1%, pH 2.5 Aqueous is designed to stain acid epithelial mucins (sialomucin, sulfomucin) as well as stromal (mesenchymal) mucin in the Alcian Blue Stain 1%, pH 2.5 procedure. Use: Acidic Mucins & Carboxylated Mucosubstances; including Barrett’s Esophageal Biopsy. Shelf Life is 1 year from date of manufacture. Store at 15-30°C.

Pricing & Availability

5,733

Biotium Thiazole Orange, 10mM in DMSO

Thiazole orange (TO) is a nucleic acid dye commonly used in reticulocyte analysis to stain residual RNA of blood cells, or to stain DNA in agarose gels and capillary electrophoresis. Thiazole Orange stains the yeast nucleus, and is also able to stain bacteria and mammalian cells. The dye has an excitation/emission of 512/533 nm when bound to DNA. Properties: Orange solution; Store dessicated at 4°C, protect from light; Ex/Em= 512/533 nm (with DNA); C26H24N2O3S2; MW: 476.61; [67-68-5].

Pricing & Availability

5,734

Biotium Calcein AM, 20x50 ug

Calcein AM is a widely used green fluorescent cell marker. Calcein AM is membrane-permeant and thus can be introduced into cells via incubation. Once inside the cells, calcein AM is hydrolyzed by endogenous esterase into the highly negatively charged green fluorescent calcein, which is retained in the cytoplasm. Calcein AM is an excellent tool for the studies of cell membrane integrity and for cell tracing. Supplied in lyophilized form or as a solution in anhydrous DMSO at 4 mM (80011-1) or 1 mg/mL (1 mM) (80011-2). Calcein AM is also offered in our Cell Viability and Cytotoxicity Assay Kit. Properties: Ex/Em (calcein) = 494/517 nm (pH 8); Colorless solid soluble in DMSO; Store at -20°C and protect from light; C46H46N2O23; MW: 995

Pricing & Availability

5,735

Biotium ViaFluor 488 Live Cell Microtubule Stain

ViaFluor™ 488 is a green fluorescent taxol probe with excitation/emission at 500/515 nm that allows fluorescent staining of microtubules in living cells for detection in the FITC channel. Supplied at 1000X in DMSO, with a vial of 100 mM verapamil, which can enhance staining in some cell types.

Pricing & Availability

5,736

Weber Scientific L-W STAIN FOR MILK SMEARS

Canadian - Xylene formula. All available formulations conform to APHA, Standard Methods for the Examination of Dairy Products. The Canadian stain contains some red basic fuchsia dye which gives the smear a pinkish background.

Pricing & Availability

5,737

Biotium ViaFluor 488 SE Cell Proliferation Kit (10 vials, 1000 assays)

ViaFluor SE Cell Proliferation Kits use non-toxic, amine-reactive dyes to covalently label cells throughout the cell cytoplasm and intracellular compartments. Cell proliferation dyes are commonly used to monitor cell division by flow cytometry. The dyes also can be used to stably label cells to image cell morphology, or to track cell populations in mixed co-culture experiments. Labeling is covalent, so it withstands fixation and permeabilization for subsequent immunostaining. This kit contains ViaFluor 488 SE which has an excitation/emission of 493/532 nm. The kit contains 10 lyophilized dye vials. Each vial is sufficient for 20 uL of 5000X stock solution.

Pricing & Availability

5,738

Bioworld Agarose Gel Loading Dye, (6X), Alkaline, 25 mL

Agarose Gel Loading DyeGel loading dye for molecular biologyAlkalineSpecifications:6X concentration300 mM NaOH6 mM EDTA0.25% Bromocresol Green0.25% Xylene cyanol FF18% Ficoll in water

Pricing & Availability

5,739

Cytek Biosciences Inc GHOST DYE RED 780 500T

Ghost Dye Red 780 Apps: FC Size: 500 tests

Pricing & Availability

5,740

Biotium Thioflavin T "high purity grade"

A cell-permeable benzothiazole dye that exhibits enhanced fluorescence (Ex/Em 450/482 nm) upon binding to amyloid fibrils. Useful in monitoring stacked b-sheet aggregates, Thioflavin T has also been used in histology and for protein characterization.Biotium offers high purity grade of Thioflavin T with HPLC purity greater than 97%.Properties: Yellow solid soluble in DMF and DMSO; Stored desiccated at 4°C; C17H19ClN2S; MWt: 318.86; [2390-54-7]

Pricing & Availability

5,741

Electron Microscopy Sciences Harris' Hematoxylin 500 ML

Harris' Hematoxylin solution is a prepared, ready-to-use, high quality staining solution that saves time and effort and produces consistent uniform results. It is used to selectivity stain for nuclei, fat, and lipids.