Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).

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Phenol red sodium salt, powder, Bioreagent cell culture reagent, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red Sodium Salt (PRSS) is a water-soluble anionic fluorescent dye, that possesses an extra Na ion attached with the SO3 group compared to phenol red. It is intended for use in cell culture applications. A solution of phenol red will have a yellow color at a pH of 6,4 or below and a red color at a pH of 8,2 and above.

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Zirconium(IV) oxide ≥99.4% (metals basis excluding Hf) stabilised, powder -100 Mesh

Supplier: Thermo Fisher Scientific

The main use of zirconia is in the production of ceramics. Zirconium dioxide is also used as the solid electrolyte in electrochromic devices As protective coating on particles of titanium dioxide pigments, as a refractory material, in insulation, abrasives and enamels.

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Acesulphame potassium ≥99%

Supplier: Spectrum Chemical

Acesulfame potassium is a sugar substitute that contains no calories and is a white crystalline powder.

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D-(+)-Biotin ≥97.5%, white crystalline powder

Supplier: MP Biomedicals

Essential vitamin that is important for amino acid and energy metabolism, and fatty acid synthesis. It is a prosthetic group in four mammalian carboxylase families and facilitates the binding and transfer of carbon dioxide.

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Phenol red, powder ACS

Supplier: MP Biomedicals

Phenol Red Sodium Salt is used as a pH indicator, it is used widely in culture media to identify changes from neutral to acidic pH values.

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Bromocresol purple, powder

Supplier: MP Biomedicals

Bromocresol Purple is used as a pH indicator (5.2-6.8 : yellow to blue-purple). Used in spectrophotometric determination of serum-albumin.

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Monoparameter photometers, Lovibond® MD 100

Supplier: Lovibond

The MD 100 range of photometers are portable handheld instruments with a simple button layout, robust waterproof design and large backlit display that are ideal for testing in the field or laboratory conditions.

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Test kits, drop count tests/

Supplier: Hach

The drop count test is a simple, easy and cost-effective way to test for many parameters like chlorine, chloride, dissolved oxygen, carbon dioxide, sulphite, nitrogen, formaldehyde, and more.

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Bromochlorophenol blue, powder

Supplier: MP Biomedicals

Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) gel electrophoresis.

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Saccharin sodium dihydrate, powder USP

Supplier: Spectrum Chemical

BSE/TSE statement (available upon request)
Allergen statement (available upon request)

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Bromophenol blue, powder

Supplier: MP Biomedicals

Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) gel electrophoresis.

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Bromophenol blue sodium salt, dark green powder ACS

Supplier: MP Biomedicals

Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) gel electrophoresis.

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Trichloroacetic acid (TCA) ≥99.0%, powder ACS

Supplier: MP Biomedicals

Trichloroacetic acid is used in protein precipitation; has been used to determine protein concentration by quantitative precipitation. Used as a decalcifier and fixative in microscopy. A protocol for the precipitation of nucleic acids can be found in Molecular Cloning.
Stability: Long term storage of aqueous solutions of less than 30% strength is not recommended. Decomposition products are chloroform, hydrochloric acid, carbon dioxide and carbon monoxide. Chloride ≤0.001% ; Nitrate ≤0.002%; Phosphate ≤5 ppm; Sulfate ≤0.02%

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D-(+)-Biotin ≥97.5%, white crystalline powder cell culture reagent

Supplier: MP Biomedicals

Storage: +4 °C
D-Biotin is a growth factor present in small amounts in every living cell. It is involved in naturally occurring carboxylation reactions. It occurs mainly bound to proteins or polypeptides. It is more abundant in the liver, kidney, pancreas, yeast and milk. Biotin levels are higher in cancerous tumors than in normal tissues. It is inactivated by binding to avidin.
D-Biotin may be used to elute proteins from avidin/streptavidin resins. It is widely used for dietary supplements and fortified foods. It is also used for tablets and hard-shell capsule preparation due to its pharmaceutical properties.
Essential vitamin that is important for amino acid and energy metabolism, and fatty acid synthesis. It is a prosthetic group in four mammalian carboxylase families and facilitates the binding and transfer of carbon dioxide.
Soluble in water (22 mg/100 mL), ethanol (80 mg/100 mL), more soluble in hot water and in dilute alkalies; insoluble in other common organic solvents. Soluble in 2 M Ammonium hydroxide (50 mg/mL - clear, colorless solution), dimethylformamide (1.7 mg/mL).