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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4,606 – 4,620 of 7,093 results

4,606

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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4,607

Carnabio Usa Inc EGFR(D746-750)/10UG/CYTOPLASM

EGFR [d746-750], Cytoplasmic domain, Mutant d746-750, Amino Acid 669-745, 751-1210(end), NP_005219.2, Expressed in Insect (sf21); 10microg

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4,608

AnaSpec DAPI[[4'',6-Diamidino-2-phenylindole, dihydrochloride]] | MW 350.3 | (10 mg)

DAPI[[4'',6-Diamidino-2-phenylindole, dihydrochloride]] ; MW 350.3; (10 mg) AT-selective minor groove binder that exhibits nice fluorescence enhancement in the presence of DNA.

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4,609

ELITECH WESCOR TB REAGENT A CARBOL 500ML

NC2874166 TB REAGENT A CARBOL 500ML

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4,610

AnaSpec Propidium iodide, 1.0 mg/mL solution in water, | MW 668.4 | (10 mL)

Propidium iodide, 1.0 mg/mL solution in water, ; MW 668.4; (10 mL) Used as a nuclear or chromosome counterstain; stain for dead cells

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4,611

Newcomer Supply Toluidine Blue Stain 0.1%, Aqueous, 500 ml

Use: Mast cell stain and MOHS basal cell carcinoma. Newcomer Supply Toluidine Blue Stain for Mast Cells is for the demonstration of mast cells, characterized as cells filled with basophilic granules, associated with inflammation and allergic reactions, which stain metachromatically with toluidine blue. Newcomer Supply Toluidine Blue Stain for Mohs Technique provides a rapid staining method for Mohs micrographic surgery (MMS), useful when evaluating frozen skin samples for basal cell carcinoma (BCC). Toluidine Blue imparts an identifiable staining pattern if BCC is present that will highlight islands of blue staining basal cell carcinoma and metachromatically stain surrounding mucopolysaccharides/stroma pink. Shelf Life is 1 year from date of manufacture. Store at 15-30°C.

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4,612

Miltenyi Biotec, Inc. MACS Inside Stain

Fixation and permeabilization of cells for intracellular staining with small staining volumes and minimal cell loss

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4,613

AnaSpec Thioflavin T UltraPure Grade, | MW 318.9 | (1 g)

Thioflavin T *UltraPure Grade*, ; MW 318.9; (1 g) The benzothiazole dye thioflavin T (ThT) is a classic amyloid stain for senile plaques containing bA4 peptide in Alzheimer's disease brain. ThT also binds rapidly and specifically to the anti-parallel b-sheet fibrils formed from synthetic b-amyloid (1-40), but does not bind to monomer or oligomeric intermediates. The fibrillar b-sheet-bound dye species undergoes a characteristic 120 nm red shift of its excitation spectrum that may be selectively excited at 450 nm, resulting in a fluorescence signal at 482 nm. ThT is a useful probe for the aggregated fibrillar state of b-amyloid (1-40) fibrils as the amyloid-specific fluorescence reports only fibrillar species. The binding of ThT does not interfere with the aggregation of this peptide into amyloid fibrils. The putative conformational changes detected by the ThT fluorescence suggest that small pharmacologic ligands can perturb and possibly dissociate Ab amyloid fibrils.

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4,614

Hach Company Hardness indicator solution for HACH SP510, 0.5l, 2 mg/l

Indicator solution for the Hach SP510 Hardness monitor. Replenish every two months for continuous operation.

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4,615

Medchemexpress LLC C.I. Disperse blue 79 | 12239-34-8 | 100 MG

C.I. Disperse blue 79 is a blue dye commonly used for fiber dyeing.

For research use only.
Appearance: Solid.
Color: Brown to black.
Shipping: Room temperature in continental US; may vary elsewhere.
Storage: 4°C, protect from light.
In solvent storage: -80°C, 6 months; -20°C, 1 month (protect from light).

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4,616

Medchemexpress LLC Nile Red (solution) | 7385-67-3 | 318.37 UG

Nile Red solution is a lipophilic stain with environment-sensitive fluorescence, exhibiting intense fluorescence in lipid-rich environments and minimal fluorescence in aqueous media. It serves as an excellent vital stain for detecting intracellular lipid droplets via fluorescence microscopy and flow cytometry.

Functions as a lipophilic stain
Features environment-sensitive fluorescence
Intensely fluorescent in lipid-rich environments
Minimally fluorescent in aqueous media
Detects intracellular lipid droplets
Suitable for fluorescence microscopy and flow cytometry
Stains intracellular lipid droplets red
Provides a fluorescence wavelength of 559/635 nm

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4,617

Thomas Scientific GreenGloT Safe DNA Dye 20 000X in Water 500 l

GreenGloT Safe DNA Dye 20 000X in Water 500 l

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4,618

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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4,619

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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4,620

MEDICAL CHEMICAL CORPORATION METHYLENE BLUE 1 GAL BTL

NC1901319 METHYLENE BLUE 1 GAL BTL

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Stains and Dyes

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Medchemexpress LLC C.I. Disperse blue 79 | 12239-34-8 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Nile Red (solution) | 7385-67-3 | 318.37 UG 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 Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC C.I. Disperse blue 79 | 12239-34-8 | 100 MG

Medchemexpress LLC Nile Red (solution) | 7385-67-3 | 318.37 UG

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