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Supplier: Thermo Scientific Chemicals
Description: DNA loading dye used to prepare markers and samples for loading on agarose or polyacrylamide gels in molecular biology protocols.
Supplier: Ricca Chemical
Description: Tropaeolin O 0.04% (w/v) in aqueous solution indicator
Supplier: Thermo Scientific Chemicals
Description: Transition interval: pH 11.0 (yellow) to 12.7 (orange)
Catalog Number: (TCO0093-025G)
Supplier: TCI America
Description: CAS Number: 1936-15-8
MDL Number: MFCD00012457
Molecular Formula: C16H12N2O7S2
Molecular Weight: 452.36
Form: Crystal
Color: Reddish Yellow

Supplier: Thermo Scientific Chemicals
Description: Tropaeolin O, pure

Supplier: Thermo Scientific Chemicals
Description: Transition interval: pH 11.0 (yellow) to pH 12.7 (orange)
Supplier: Ambeed
Description: Sodium 4-(3-(4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-2-isopropyl-5-methylphenolate, Purity: (red)1.2 to 2.8(yellow), (yellow)8.0 to 9.6(blue), CAS: 62625-21-2, Appearance: Orange to Brown powder/crystal, Storage: Inert atmosphere, Room Temperature, Size: 25g

Catalog Number: (76791-802)
Supplier: Ambeed
Description: 3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, disodium salt, Purity: 98% (contains less than 6%H2O), CAS Number: 518-47-8, Appearance: Orange to Brown Powder, Crystals and/or Chunks, Storage: Inert atmosphere, Room Temperature, Size: 1000G


Supplier: BeanTown Chemical
Description: CAS: 547-57-9; EC No: 208-924-8; MDL No: MFCD00007499; RTECS: DB6145180 Powder; Molecular Formula: C12H9N2NaO5S; MW: 316.27

SDS

Supplier: Spectrum Chemicals
Description: Tropaeolin O, also known as Chrysoine resorcinol or Yellow T, is a synthetic azo dye used as a pH indicator.

Small Business Enterprise

Catalog Number: (100504-126)
Supplier: Electron Microscopy Sciences
Description: Kornhauser's quad stain for most elementary structures of tissues. Stain Tech., 18, 985 (1943) Mallory's tissue stain for connective tissue. Mallory, J. Exper. Med., 5,15 (1900). Used with safranin and tannic acid for showing shoot apex in plant tissue. Stain Tech., 18, 105 (1943).

Minority or Woman-Owned Business Enterprise



Supplier: Adipogen
Description: Probe for the colorimetric determination of boron in samples such us soils, plants, composts, manure, water, nutirent solution, glass or steel (microgram levels of boron). It forms an orange complex with boron in aqueous solution (absorption maxima at ~415nm). The detection range of boron in sample solutions is 1.0-6ppm. To detect boron in plant samples EDTA is used to mask copper, iron and aluminium ions. It is also used in electrocyclization reactions in the synthesis of martinellic acid, spirotryprostatin A and benzodiazepinones. Was shown to produce free radicals and might have anti-malarial and anti-cancer properties.

Supplier: Adipogen
Description: Water soluble pH indicator used in the 6.8 (yellow) to 8.2 (red) range and frequently used in cell biology laboratories. Widely used as cell tissue culture pH marker. A small amount of phenol red added to the growth medium will have a pink-red color under normal conditions. Typically, 15 mg/l are used for cell culture. In the event of problems, waste products produced by dying cells or overgrowth of contaminants will cause a change in pH, leading to a change in indicator color. For example, a culture of relatively slowly dividing mammalian cells can be quickly overgrown by bacterial contamination. This usually results in an acidification of the medium, turning it yellow. The waste products produced by the mammalian cells themselves will slowly decrease the pH, gradually turning the solution orange and then yellow. This color change is an indication that even in the absence of contamination, the medium needs to be replaced. Shown to be a weak estrogen mimic (possible through inpurities), which can enhance the growth of cells that express the estrogen receptor in cell cultures. Might be useful as a differentiation factor.

Supplier: MP Biomedicals
Description: Hanks' Balanced Salts solution is used to maintain the pH and osmotic balance in the medium and to provide the cells with water and essential inorganic ions.

Supplier: MilliporeSigma
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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