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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5,371 – 5,385 of 7,256 results

5,371

Scytek Laboratories Giemsa Stain Kit (May-Grunwald): Large

The Giemsa Stain Kit (May-Grunwald) is intended for use in the visualization of cells present in hematopoietic tissues and certain microorganisms. This kit may be used on formalin-fixed, paraffin-embedded sections.Nuclei: Blue/VioletCytoplasm: Light BlueCollagen: Pale PinkMuscle Fibers: Pale PinkErythrocytes: Gray, Yellow or PinkRickettsia: Reddish-PurpleHelicobacter Pylori: BlueMast Cells: Dark Blue with Red GranulesKit contents: MAY500, May-Grunwald Stock Solution, 500 ml. GGS500, Giemsa Stock Solution, 500 ml. PBM500, Phosphate Buffer Solution, pH 6.8, 500 ml.

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5,372

Med Vet International McKesson LUMEON Blood Pressure Cuff 2-Tube Bladder Adult 01-845-11ABK-2GM 15/Case

McKesson LUMEON Blood Pressure Cuff 2-Tube Bladder Adult 01-845-11ABK-2GM 15/Case

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5,373

AdipoGen Alcian Blue 8GX Solution

Chemical. CAS 75881-23-1. Formula C56H68Cl4CuN16S4. MW 1298.87. Synthetic. Alcian blue 8GX is primarily used for demonstrating acid mucopolysaccharides, which it does quite selectively. In recent years there has been some difficulty obtaining the dye. Alcian Blue 8GX is also suitable for detection of glycoproteins on nitrocellulose and in PAGE gels. There are other dyes similar to alcian blue, although not necessarily belonging to the same class of dyes. Alcian green has gained some popularity, and alcian yellow has been suggested, especially in a method for demonstrating Helicobacter. They are used for acid mucopolysaccharides in the same way as alcian blue. They have no particular advantage for demonstrating mucin. According to the Merck Index the groups marked X split off during staining.

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5,374

AdipoGen Tetrazolium Violet

Chemical. CAS 1719-71-7. Formula C23H17ClN4. MW 384.86. Tetrazolium violet TZV is a tetrazolium salt TTZ, is widely used for microbiological studies as a redox indicator to indicate cellular respiration. Tetrazolium salts are colourless compounds which become coloured when reduced to formazans. Traditionally used as indicators of cell metabolism in eukaryotes and prokaryotes, they function as artificial electron acceptors and thus detect dehydrogenase activities. The production of coloured formazan is irreversible and can be quantified using spectrophotometry. TZV forms a water-insoluble formazan. This salt is positively charged and considered as cell permeable. The positive charge is thought to facilitate cellular uptake due to the membrane potential. It is generally used as indicators of cell redox activity in order to test resistance to solvents, drug susceptibility or specific substrate utilization.

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5,375

Cayman Chemical Eosin Y, CAS: 15086-94-9, 50 mg

A dye and brominated fluorescein derivative; exists as a tautomer in aqueous solutions; has commonly been used in H&E staining to stain the extracellular matrix and cytoplasmic proteins; ex/em = 526/544 nm, respectively; has been used as a photoredox catalyst in various organic synthesis reactions; a non-selective inhibitor of histone methyltransferases at 100 µM

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5,376

Medchemexpress LLC HY-111391 500mg Medchemexpress, Resazurin (sodium) CAS:62758-13-8 Purity:>98%

Medchemexpress, HY-111391 500mg Resazurin (sodium) CAS:62758-13-8 Resazurin sodium (Diazoresorcinol sodium) is commonly used to measure bacterial and eukaryotic cell viability through its reduction to the fluorescent product resorufin. Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.

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5,377

Cayman Chemical Acesulfame (potassium salt), Purity: ≥98%, CAS: 55589-62-3, 25 g

A non-caloric sweetener; has been found in wastewater and is considered a pollutant

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5,378

Sigma Aldrich Fine Chemicals Biosciences Bromophenol Blue ACS reagent | 115-39-9 | MFCD00005875 | 25G

Bromophenol Blue ACS reagent | Mol Wt: 669.96 | 115-39-9 | MFCD00005875 | 25G

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5,379

Medchemexpress LLC MRS2279 diammonium | 2387505-47-5 | 98.0% | 503.77 | 50 MG

MRS2279 diammonium is a selective, high-affinity P2Y1 receptor antagonist. It competitively inhibits ADP-promoted platelet aggregation. The salt form offers enhanced water solubility and stability, while maintaining comparable biological activity to the free form. This product is intended for research use only.

Selective and high-affinity P2Y1 receptor antagonist
Competitively inhibits ADP-promoted platelet aggregation
Enhanced water solubility
Improved stability

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5,380

Sigma Aldrich Fine Chemicals Biosciences Nitrotetrazolium Blue chloride >=90.0% (HPLC) | 298-83-9 | MFCD00012159 | 1G

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5,381

Sigma Aldrich Fine Chemicals Biosciences Patent Blue VF Dye content 50 % | 129-17-9 | MFCD00012119 | 25G

Patent Blue VF Dye content 50 % | Mol Wt: 566.66 | 129-17-9 | MFCD00012119 | 25G

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5,382

Wards Natural Science Est VEGGIE DYE FD&C BLUE#1 50ML

Vegetable Dye. Solubility: Water. Shelf Life (months): 12. Storage: Green Please Note: This product is designed for educational and teaching laboratories, and no certificate of analysis is available.

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5,383

eMolecules 33864-99-2 | Medchem Express | Alcian Blue 8GX | 50mg | 778475866 | HY-D0001 | MFCD00010720 | 1298.86 | C56H68Cl4CuN16S4

ChemScene | 24-Dichloro-3-methylbenzoic acid | 250mg | 572280849 | CS-0061146 | 83277-23-0 | MFCD16659660 | 205.030 | C8H6Cl2O2

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5,384

Sigma Aldrich Fine Chemicals Biosciences Brilliant Cresyl Blue ALD Certified by the Biological Stain Commission | 51716-96-2 | MFCD00148901 | 10G

Brilliant Cresyl Blue ALD Certified by the Biological Stain Commission | Mol Wt: 385.96 | 51716-96-2 | MFCD00148901 | 10G

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5,385

AdipoGen Nitrotetrazolium blue chloride

Chemical. CAS 298-83-9. Formula C40H30Cl2N10O6. MW 817.2. Synthetic. NADPH-diaphorase substrate that competitively inhibits NOS nitric oxide synthase. Well-known scavenger of superoxide anions. Dye that is used for detection of alkaline phosphatase in combination with 5-bromo-4-chloro-3-indoxyl phosphate BCIP. This substrate system produces an insoluble NBT diformazan end product that is blue in color and can be observed visually. When used with BCIP, it is suitable for detection of alkaline phosphatase in western blots, for immunohistological staining procedures and for colorimetric indication of bacterial infection in blood samples. Used as a redox indicator for enzymatic reactions including dehydrogenases, threonine deaminase, glucose-6-phosphate dehydrogenase, phosphofructokinase on polyacrylamide gels, oxidases on polyacrylamide gels and pentose shunt dehydrogenses. The NBT/BCIP reaction is also used for colorimetric/spectrophotometric activity assays of oxidoreductases.

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Medchemexpress LLC HY-111391 500mg Medchemexpress, Resazurin (sodium) CAS:62758-13-8 Purity:>98% Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC MRS2279 diammonium | 2387505-47-5 | 98.0% | 503.77 | 50 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC HY-111391 500mg Medchemexpress, Resazurin (sodium) CAS:62758-13-8 Purity:>98%

Medchemexpress LLC MRS2279 diammonium | 2387505-47-5 | 98.0% | 503.77 | 50 MG