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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6,151 – 6,165 of 7,245 results

6,151

Sigma Aldrich Fine Chemicals Biosciences Bromocresol Green ACS reagent, Dye content 95 % | 76-60-8 | MFCD00005874 | 5G

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6,152

Sigma Aldrich Fine Chemicals Biosciences Eosin Y disodium salt Dye content | 17372-87-1 | MFCD00005040 | 25g

Eosin Y disodium salt Dye content | 85% | 691.85 | 17372-87-1 | MFCD00005040 | 25g

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6,153

Sigma Aldrich Fine Chemicals Biosciences Phenolphthalein Bisphosphate Tetrasodium Salt | 68807-90-9 | MFCD00005907 | 1g

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6,154

Sigma Aldrich Fine Chemicals Biosciences Sudan Red 7B | 6368-72-5 | MFCD00003904 | 50G

Sudan Red 7B | Mol Wt: 379.46 | 6368-72-5 | MFCD00003904 | 50G

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6,155

Enzo Life Sciences NAO (ultra pure) (25mg). CAS: 75168-11-5

10-N-Nonyl acridine orange (NAO) is an acridine orange derivative and is generally used as a fluorescent marker of the inner mitochondrial membrane in whole cells. It is believed to bind to negatively charged phospholipids. NAO accumulation in the cell seems to be related to specific interactions with mitochondrial membrane proteins and/or lipids, such as cardiolipin, and is largely independent of mitochondrial membrane potential. With respect to apoptosis, the presence of mitochondrial membrane potential can be probed with Rhodamine123 while the structure and integrity of mitochondria can be assessed using 10-N-nonyl-acridine orange. Wavelength Maxima: Excitation 495nm, Emission 519nm Alternative name: Nonyl Acridine Orange, 3,6-bis(Dimethylamino)-10-nonyl-acridinium bromide. Purity: ≥95% (HPLC). Solubility: Soluble in DMSO. Long Term Storage: -20°C.

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6,156

Sigma Aldrich Fine Chemicals Biosciences 2-Amino-2-methyl-1-propanol BioXtra, >=95% | 124-68-5 | MFCD00008051 | 500ML

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6,157

Sigma Aldrich Fine Chemicals Biosciences Acid Blue 80 Dye content 40 % | 4474-24-2 | MFCD00001192 | 100G

Acid Blue 80 Dye content 40 % | Mol Wt: 678.68 | 4474-24-2 | MFCD00001192 | 100G

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6,158

Sigma Aldrich Fine Chemicals Biosciences Chromotrope FB Dye content 50 % | 3567-69-9 | MFCD00003978 | 50G

Chromotrope FB Dye content 50 % | Mol Wt: 502.43 | 3567-69-9 | MFCD00003978 | 50G

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6,159

Sigma Aldrich Fine Chemicals Biosciences alpha-Naphtholbenzein indicator (pH 8.2-10.0) | 145-50-6 | 50G

alpha-Naphtholbenzein indicator (pH 8.2-10.0) | Mol Wt: 374.43 | 145-50-6 | 50G

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6,160

Sigma Aldrich Fine Chemicals Biosciences Cresol red indicator grade, Dye content | 1733-12-6 | MFCD00005878 | 5g

Cresol red indicator grade, Dye content | 95% | MW: 382.43 | 1733-12-6 | MFCD00005878 | 5g

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6,161

Sigma Aldrich Fine Chemicals Biosciences Rose bengal|632-69-9 | MFCD00005043 | 5g

Rose bengal | Purity: 95% | MW: 1017.64 | 632-69-9 | MFCD00005043 | 5g

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6,162

Enzo Life Sciences JC-1 (ultra pure) (5mg). CAS: 47729-63-5

JC-1 is widely used for determining mitochondrial membrane potential by flow cytometry, fluorescence microscopy and in microplate-based fluorescent assays. JC-1 accumulates in mitochondria, selectively generating an orange J-aggregate emission profile (590 nm) in healthy cells. However, upon cell injury, as membrane potential decreases, JC-1 monomers are generated, resulting in a shift to green emission (529 nm). The principal advantage of JC-1 relative to other commonly employed fluorescent probes of mitochondrial membrane potential is that it allows for both qualitative visualization, considering the shift from orange to green fluorescence emission, and quantitative detection, considering the fluorescence intensity ratio. Wavelength Maxima: Excitation 515nm, Emission 529nm Alternative name: 5,5',6,6'-Tetrachloro-1,1',3,3'-tetraethylbenzimidazolylcarbocyanine iodide. Purity: ≥95% (TLC). Solubility: Soluble in DMSO. Long Term Storage: -20°C.