You Searched For: Spectroscopic+Instruments

Description: pZerve™ Cyropreservation solution is a ready-to-use, sterile, cryopreservation solution lacking dimethyl sulfoxide (DMSO), fetal bovine serum or other animal proteins.

Catalog Number: 76337-142

Supplier: MP Biomedicals

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Description: White Powder

Catalog Number: 76204-022

Supplier: MP Biomedicals

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Description: amino acid found in human plasma and thyroid gland, similar to thyroxine

Catalog Number: 76204-382

Supplier: MP Biomedicals

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Description: Tris cell culture reagent, Purity: >/-99.95%, Molecular formula: C4H11NO3, Molecular weight: 121.136 g/mol, pH: pH of 0.1 molar aq soln = 10.4, Dust mask, Eyeshields, Gloves, Synonyms: Trometamol,Tromethamine,Tris-[hydroxymethyl]aminomethane,2-Amino-2-(hydroxymethyl)-1,3-propanediol,Size: 5kg

Catalog Number: 76461-488

Supplier: MP Biomedicals

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Description: 2,2'-Azino-bis-(3-ethylbenzthiazoline-6-sulfonic Acid) Solution is oxidized to a radical action showing absorption maxima at 820 nm, 734 nm, 650 nm and 405 nm, in the presence of hydrogen peroxide and HRP. The latter frequency demonstrates a significant molar extinction coefficient and is generally employed for most ABTS assays. Stopping the reaction with acid does not alter the 405 nm spectrum allowing kinetic and endpoint methods to be measured at the same wavelength. Provided as a room temperature stable, single component ABTS solution satisfactory for quantitative analysis of HRP based systems.

Catalog Number: IC04821809

Supplier: MP Biomedicals

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Description: A non-specific phosphatase inhibitor. Inhibits acid, alkaline and protein phosphatases.
Preferred substrate for bioanalytical determinations of acid phosphatases, such as prostatic acid phosphatase.
Non-specific phosphatase inhibitor. Inhibits acid, alkaline and protein phosphatases.
+4°C

Catalog Number: 76177-528

Supplier: MP Biomedicals

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Description: 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).

Catalog Number: 76177-770

Supplier: MP Biomedicals

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Description: Storage: Store at room Temperature (15-30 °C)
Sucrose is a nonreducing disaccharide composed of glucose and fructose, linked via their anomeric carbons. It is obtained commercially from Sugarcane, sugar beet (Beta vulgaris), and other plants and used extensively as a food and a sweetener.
Use to create sucrose gradients for purification of viruses and proteins.

Catalog Number: 76177-756

Supplier: MP Biomedicals

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Description: Storage: Store at +4 °C, store under nitrogen
Glutathione is the major low molecular weight thiol compound of the living plant or animal cell. It is a tripeptide with a gamma peptide linkage between the amine group of cysteine (which is attached by normal peptide linkage to a glycine) and the carboxyl group of the glutamate side-chain. It is an antioxidant, preventing damage to important cellular components caused by reactive oxygen species such as free radicals and peroxides. The sulfhydryl (thiol) group (SH) of cysteine serves as a proton donor and is responsible for the biological activity of glutathione.
Glutathione suppresses human immunodeficiency virus expression in chronically infected monocytic cells. It is a useful tripeptide involved in many aspects of metabolism, including transport of g-glutanyl amino acids and reductive cleavage of disulfide bonds.
Endogenous antioxidant that plays a major role in reducing reactive oxygen species formed during cellular metabolism and the respiratory burst. Glutathione-S-transferase catalyzes the formation of glutathione thioethers with xenobiotics, leukotrienes, and other molecules that have an electrophilic center. Glutathione also forms disulfide bonds with cysteine residues in proteins. Via these mechanisms, it can have the paradoxical effect of reducing the efficacy of anti-cancer agents.

Catalog Number: 76177-852

Supplier: MP Biomedicals

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Description: Storage: Room Temperature
2-Mercaptoethanol is a hybrid of ethylene glycol and 1,2-ethanedithiol. It is used to reduce disulfide bonds and can act as a biological antioxidant by scavenging hydroxyl radicals. It is widely used because the hydroxyl group confers solubility in water and lowers the volatility. Due to its diminished vapor pressure, its odour, while unpleasant, is less objectionable than related thiols.
2-Mercaptoethanol is used to reduce disulfide linkages in solubilizing proteins for gel electrophoresis (typically used in SDS-PAGE sample buffer at 5% concentration). Also it reduces excess oxidative polymerization of catalysts. Cleaving intermolecular (between subunits) disulfide bonds allows the subunits of a protein to separate independently on SDS-PAGE. Cleaving intramolecular (within subunit) disulfide bonds allows the subunits to become completely denatured so that each peptide migrates according to its chain length with no influence due to secondary structure. In solution, 2-mercaptoethanol is readily oxidized in air to a disulfide, especially at alkaline pH. Because of this property, it is widely used to protect proteins, enzymes in particular, from becoming inactive. An excess of 2-mercaptoethanol (generally used at 0.01 M) will maintain the protein thiol groups in their reduced state.

Catalog Number: 76177-910

Supplier: MP Biomedicals

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Description: Storage: Store at Room Temperature (15 - 30 °C)
Glycerol is used both in sample preparation and gel formation for polyacrylamide gel electrophoresis. Glycerol (5-10%) increases the density of a sample so that the sample will layer at the bottom of a gel’s sample well. Glycerol is also used to aid in casting gradient gels and as a protein stabilizer and storage buffer component. Glycerol is used in the concentration and storage of enzymes. Also prevents back-diffusion and protein samples into the buffer. Ideal for use as a cryoprotectant.

Catalog Number: 76177-728

Supplier: MP Biomedicals

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Description: May be used for washing spheroplasts and in isoelectric focusing to minimize endoosmotic flow in agarose gels. May be used to induce osmotic stress.
D-Sorbitol is a sugar alcohol that is commonly used as a sugar substitute. It occurs naturally and is also produced synthetically from glucose. The food industry uses D-sorbitol as an additive in the form of a sweetener, humectant, emulsifier, thickener, or dietary supplement. D-Sorbitol has also been found in cosmetics, paper, and pharmaceuticals. Naturally, D-sorbitol occurs widely in plants via photosynthesis, ranging from algae to higher order fruits of the family Rosaceae.

Catalog Number: 76177-308

Supplier: MP Biomedicals

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Description: Mineral Oil is a colorless, odorless mixture of alkanes from a mineral source. It is often used as an inert overlay to minimize evaporation in molecular biology applications, including PCR, but has many other applications on other research fields.

Catalog Number: 76177-362

Supplier: MP Biomedicals

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Description: Storage: +4°C, protect from light
3- (4,5-Dimethyl-2-thiazolyl-2)-2,5-diphenyl-tetrazolium bromide is used as a colorimetric metabolic activity indicator in cell viability assays. Thiazolyl Blue Tetrazolium Blue (MTT) is a dye used in measurement of cell proliferation. MTT produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells. The blue crystals are solubilized with acidified isopropanol and the intensity is measured colorimetrically at 570 nm. MTT has been used as a histochemical/cytochemical reagent and for the detection of NAD. ADP-linked enzyme systems in tissue cannot be detected with MTT, due to binding of the cation by the cyanide trap used. MTT is rapidly reduced to the formazan, which chelates with nickel, copper, and cobalt; the cobalt chelate has been used in oxidative systems.

Catalog Number: 76177-686

Supplier: MP Biomedicals

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Description: Storage: Store at Room Temperature (15-30 °C.)
L-histidine is one of the three amino acids with a basic side chain, and is very hydrophilic in character. It contains an imidazole group in the side chain.
L-Histidine has been used to study cultures of the human T-lymphoblastic leukemia cell line MOLT-4 to study modulation of apoptosis. It is used in treatment of rheumatoid arthritis, allergic diseases, ulcers & anemia.
Precursor of histamine by action of histidine decarboxylase.

Catalog Number: 76177-734

Supplier: MP Biomedicals

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Description: SDS is an anionic detergent typically used to solubilize and denature proteins for electrophoresis.
SDS is used to solubilize and denature protein for Protein Electrophoresis & Blotting. SDS has also been used in large-scale phenol extraction of RNA to promote the dissociation of protein from nucleic acids when extracting from biological material. Surfactant used for mild, efficient, and greener dethioacetalization.
Store at Room Temperature (15-30 °C).

Catalog Number: 76177-284

Supplier: MP Biomedicals

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