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.

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6,721 – 6,735 of 7,247 results

6,721

Aqua Solutions Bromothymol Blue 0.1% in Methanol, pH 7.50 ± 0.05

Bromothymol Blue 0.1% in Methanol, pH 7.50 ± 0.05

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6,722

Bradley Product Inc BLACK MARKING DYE 8OZ

8 oz. bottle of black tissue marking dye

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6,723

Aqua Solutions Reagent 505 (Contains Sulfuric Acid) (4L)

Reagent 505 (Contains Sulfuric Acid) (4L)

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6,724

Volu Sol Gram Stain Kit, 4 oz / 120 mL, Volu-Sol™

Kit used to stain microorganisms from cultures or specimens by the differential Gram method

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6,725

Enzo Life Sciences Calcein AM (ultra pure) (1mg). CAS: 148504-34-1

Calcein acetomethoxy (AM), a derivative of calcein, is useful for differentiating between live and dead cells. Calcein AM readily passes through the cellular plasma membrane. Once inside, esterases cleave the AM groups yielding the more hydrophilic calcein, trapped inside the cell. The loss of the acetomethoxy group also enables calcein to readily bind intracellular calcium; resulting in a strong yellowish-green fluorescence. As dead cells lack cytoplasmic esterases, fluorescence is demonstrated exclusively in live cells, making the probe useful for determining cell viability. Calcein-AM exhibits low cytotoxicity and does not significantly affect cellular functions such as proliferation or chemotaxis. Wavelength Maxima: Excitation 495nm, Emission 515nm. Alternative name: 3',6'-Di(O-acetyl-2',7'-bis[N,N-bis(carboxymethyl)-aminomethyl]fluorescein tetraacetoxymethyl ester. Purity: ≥95% (HPLC). Solubility: Soluble in DMSO. Long Term Storage: -20°C.

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6,726

Biotium SynaptoGreen™C4 5x1mg

A widely used green fluorescent dye for following synaptic activity by staining synaptic vesicles at the synapse or neuromuscular junctions. Biotium offers several Nerve Terminal Staining Kits for staining brain slices with synaptic vesicle dyes.Properties: Ex/Em: 510/625 nm (in MeOH); 480/598 nm (in membranes); Red solid soluble in water; C30H49Br2N3; MW: 612.FM is a registered trademark of Thermo Fisher Scientific.

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6,727

Bioworld Gram Stain Kit, 100 mL

Contains one bottle of each solution: Crystal Violet, Iodine, Decolorizer, Safranin-O Counterstain The iodine reagent is a stable, single solution, requiring no mixing.

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6,728

Bioworld Decolorizing Solution, 16 oz

Used in Gram staining

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6,729

Cayman Chemical Penicillin V (potassium salt), Purity: ≥98%, CAS: 132-98-9, 25 g

A β-lactam antibiotic; inhibits the growth of clinical isolates of Streptococci (MICs = 0.004-0.008 mg/l) and C. difficile (MICs = 1 to >256 mg/l); inhibits growth of S. aureus in vitro (MIC = 0.016 mg/l) and in vivo in a thigh model of infection in mice; inhibits the growth of S. pyogenes in mice following one or two dose therapy (CD50s = 0.207 and 0.031 mg, respectively); prevents experimental acute otitis media in rats when administered at 100 mg/kg per day (p.o.) prior to infection by pneumococci

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6,730

Electron Microscopy Sciences Weigert's Iron Hematoxylin B 1 LT

Weigert's Iron Hematoxylin Stain is used selectivity for nuclei, fungal, and general applications. It is a ready-to-use, high quality staining solution that is packaged and prepared in convenient and precise quantities.

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6,731

Electron Microscopy Sciences Weigert's Iron Hematoxylin A, 500ml

Stain selectivity for nuclei, fungal, and general applications. Ready-to-use.

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6,732

Lumiprobe Cyanine5 NHS ester, 1263093-76-0, 1mg

Molecular formula: C36H42N3BF4O4, Molecular weight: 667.54, Appearance: dark blue solid, Solubility: very poorly soluble in water (0.19 mM = 127 mg/L), good in polar (DMSO, DMF) and chlorinated (DCM, chloroform) organic solvents; Amine-reactive red emitting fluorescent dye for the labeling of proteins/peptides and amino-oligonucleotides. For the labeling of sensitive proteins, use water-soluble sulfo-Cyanine5 NHS ester.

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6,733

Aqua Solutions Phenol Standard 10 ppm w/v Solution (500ML)

Phenol Standard 10 ppm w/v Solution (500ML)

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6,734

Newcomer Supply Alcian Blue 8GX, Powder, 5 g

CI 74240. Shelf Life is 4 years from date of manufacture. Store at 15-30°C.

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6,735

Biotium DAPI

DAPI (4′,6-Diamidino-2-Phenylindole, dihydrochloride) is a popular blue DNA dye that is used as a nuclear counterstain in fluorescence microscopy, chromosome staining and flow cytometry. The dye binds to the minor groove of dsDNA with approximately 20-fold fluorescence enhancement, with higher affinity for A-T rich regions. DAPI may be used in fixed cells or in live cells at higher concentrations. The dye has an excitation/emission of 358/461 nm. Properties: Yellow solid soluble in water; Store dessicated at 4°C, protect from light; Ex/Em= 358/461 nm (with DNA); C16H17Cl2N5; MW:350.25; [28718-90-3].

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Stains and Dyes

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