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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4,576 – 4,590 of 7,093 results

4,576

Volu Sol Eosin Y 1% Alcoholic, 32 oz / 1 L, Volu-Sol™

Counterstain in ethanol, stock solution

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4,577

Volu Sol Gill's Hematoxylin I (Single Strength), 128 oz / 3.78 L, Volu-Sol™

Nuclear stain, progressive. Used with hematoxylin and eosin staining

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4,578

Volu Sol Trichrome Blue Stain (Ryan Modification), 16 oz / 500 mL, Volu-Sol™

Trichrome Blue, recommended for the detection of microsporidia in urine, stool, and nasopharyngeal specimens

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4,579

Volu Sol Papanicolaou Stain, EA-50, 32 oz / 1 L, Volu-Sol™

Papanicolaou stain used for critical examination of nuclei and cytoplasmic components of exfoliative cells

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4,580

Aqua Solutions Phenolphthalein Solution 0.1% w/v in Methanol (500ML)

Phenolphthalein Solution 0.1% w/v in Methanol (500ML)

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4,581

AMERICAN RESEARCH PRODUCTS INC NEUTRAL XYLANASE ASSAY KIT

503029977 NEUTRAL XYLANASE ASSAY KIT

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4,582

Polysciences, Inc. Fast Blue (FB) | 73819-41-7 | MFCD00011886 | 1 mg

Fast Blue (FB) | Mol Wt: 339.181 | 73819-41-7 | MFCD00011886 | 1 mg

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4,583

Sigma Aldrich Fine Chemicals Biosciences Aniline Blue solution 2.5 in 2 acetic acid, 28631-66-5

Aniline Blue solution 2.5 in 2 acetic acid

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4,584

Medchemexpress LLC Nile Red (Nile blue oxazone) | 7385-67-3 | 99.7% | 5 MG

Nile red (Nile blue oxazone) is a lipophilic stain that exhibits environment-sensitive fluorescence. It is intensely fluorescent in lipid-rich environments and shows minimal fluorescence in aqueous media. This stain is excellent for detecting intracellular lipid droplets by fluorescence microscopy and flow cytometry, staining them red. The fluorescence wavelength is 559/635 nm.

Lipophilic stain
Environment-sensitive fluorescence
Intensely fluorescent in lipid-rich environments
Minimal fluorescence in aqueous media
Excellent vital stain for detecting intracellular lipid droplets
Used in fluorescence microscopy and flow cytometry
Stains intracellular lipid droplets red
Fluorescence wavelength: 559/635 nm

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4,585

Sigma Aldrich Fine Chemicals Biosciences Bromocresol Purple solution 0.04 wt. % in H2O | 62625-30-3 | MFCD00148896 | 100ML

Bromocresol Purple solution 0.04 wt. % in H2O | Mol Wt: 562.2 | 62625-30-3 | MFCD00148896 | 100ML

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4,586

Sigma Aldrich Fine Chemicals Biosciences Stains-All | 7423-31-6 | MFCD00078788 | 1 g

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4,587

Cayman Chemical CalceIn Deep RedAM 1mg

A fluorogenic probe; non-fluorescent but cell-permeant and is hydrolyzed to the fluorescent probe Calcein Deep Red™ that displays excitation/emission maxima of 643/663 nm, respectively

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4,588

Cayman Chemical ANTIBODY NIle Red 250mg

A fluorescent probe for lipid droplets; ex/em = 529/576 nm, respectively, for neutral lipids; has been used in live, fixed, or unfixed cells; has been used as a marker of lipid droplets in cellular models of hepatocyte steatosis

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4,589

S2 Media 15x100mm Eosin Methylene Blue (L-EMB) Agar, Levine, 10/pack

Eosin Methylene Blue (EMB) Agar, Levine is a selective and differential medium used for the isolation and differentiation of Gram-negative enteric bacilli. This medium was introduced in 1916 by Holt-Harris and Teague to differentiate Escherichia spp. and Aerobacter spp.. It was modified by Levine in 1918 who removed sucrose from the formula and increased the lactose content. The distinctive metallic sheen produced by E. coli on this medium is due to acid production resulting in amide bonding between the eosin and methylene blue. Other coliforms do not produce enough acid to cause this reaction. Eosin inhibits most Gram-positive organisms.• Product meets AOAC, BAM, CLSI, NF, SM-Dairy, SMWW, and USP reference methods and performance criteria.• EMB Agar should be used by trained professionals within a laboratory setting. • For in vitro diagnostic (IVD) use.• Product is not intended for use in the diagnosis or treatment of disease or other human conditions.

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4,590

S2 Media 25mL Methyl Red (MR) Reagent in Dropper Bottle, 1/each

S2Media™ Methyl Red (MR) Reagent is used to evaluate an organism’s ability to produce and maintain stable acidic end products from glucose fermentation. First described in 1915 by Clarke and Lubs, this test is commonly used to differentiate between members of the coli-aerogenes group of enteric bacteria. Testing is performed on isolated colonies on solid media.Positive Test: Red on the surface of the medium, indicating sustained acid production (low pH).Negative Test: Yellow on the surface of the medium, indicating neutral end products (high pH).• Methyl Red Reagent should be used by trained professionals within a laboratory setting. • Product is not intended for use in the diagnosis or treatment of disease or other human conditions.

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Stains and Dyes

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Medchemexpress LLC Nile Red (Nile blue oxazone) | 7385-67-3 | 99.7% | 5 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Nile Red (Nile blue oxazone) | 7385-67-3 | 99.7% | 5 MG