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Beskrivning: L-Malic Acid is a dicarboxylic acid that is made by all living organisms. The malate anion is an intermediate in the citric acid cycle.

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Beskrivning: Oleic acid is a mono-unsaturated omega-9 fatty acid created by dehydrogenation of stearic acid. It is then further dehydrogenated and elongated to create members of the n-9 family of fatty acids.

Leverantör: MP Biomedicals

Beskrivning: Applications
Guanidine hydrochloride can be used as the first step in refolding proteins or enzymes into their active form. Urea and dithiothreitol (DTT) may also be necessary. Also used in the isolation of RNA. It is a strong chaotropic agent useful for the denaturation and subsequent refolding of protein, it can solubilize insoluble or denatured proteins such as inclusion bodies and be used for the recovery of periplasmic proteins. This can be used as the first step in refolding proteins or enzymes into their active form. Urea and dithiothreitol (DTT) may also be necessary. Also used in the isolation of RNA.
Product Description
The crystal structure of Guanidine hydrochloride consists of a network of guanidinium cations and chloride anions linked by N–H•••Cl hydrogen bonds,it is a strong chaotropic agent.Guanidine HCl may agglomerate upon storage. It may appear as a free-flowing crystalline powder, a freeflowing powder with solid material dispersed throughout, or a solid. The quality of the product does not appear to be affected and solutions prepared from the free-flowing and lumpy guanidine HCl appear identical

Grade: Ultra Pure
Purity: >99%
Keywords: Guanidium chloride, chaotropic agent
Key Applications: Chaeotropic agent
Product Type: Biochemicals
Biochemical Category: Chaotropic Agents
Density: 1.345 g/cm³ at 20 °C (Lit.)
Melting Point: 180-190 °C
UV/Visible Absorbance: OD260nm (6.0 M aq soln) <0.03
Presentation: White Crystalline Powder
pH: 4-6 (6.0 M aq soln)
Solubility: Soluble in water,Clear, Colorless Solution (6 M - clear, colorless solution).
Storage & Handling: Room Temperature, desiccate

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Leverantör: MP Biomedicals

Beskrivning: 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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Beskrivning: -Aminosalicylic acid is an analogue of p-aminobenzoic acid. It is an antitubercular agent. The sodium salt of the drug is better tolerated than the free acid.

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Beskrivning: o-Nitrophenyl-β-D-galactoside is a cell culture component for molecular genetics. It is chromogenic substrate for b-galactosidase and hence is useful in the detection of lacZ activity.

Leverantör: MP Biomedicals

Beskrivning: Soluble in alcohol (ethanol: 50 mg/ml), benzene, ether. Insoluble in water. Chloroform: soluble 0,1 g/ml, clear, slightly yellow to deep yellow.

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Beskrivning: β-Escin, vit 92 - 95%, pulver

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Beskrivning: Storage: -20°C, desiccate
This is an ultrapure NAD, chromatographically purified to remove trace inhibitors.
β-NAD, a pyridine nucleotide and biologically active form of nicotinic acid, is a coenzyme necessary for the catalytic reaction of certain enzymes. It occurs in living cells primarily in the oxidized state. Serves as a coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain.
Many metabolites and enzymes of biological interest are present in tissues at low concentrations. With the use of β-NAD as a catalyst intermediate and several enzymes in a multistep system, known as enzyme cycling, much greater sensitivity for detection of these components is achieved. The reduced form, β-NADH, is fluorescent whereas β-NAD is not. This difference in fluorescence provides a sensitive fluorescent measurement of the oxidized or reduced pyridine nucleotides at concentrations down to 10-7 M.
Electron acceptor. β-NAD is a carrier for hydride ion, forming b-NADH. Hydride ion is enzymatically removed from a substrate molecule by the action of dehydrogenases such as malic dehydrogenase and lactic dehydrogenase. Such enzymes catalyze the reversible transfer of a hydride ion from malate or lactate to b-NAD to form the reduced product, b-NADH. Unlike b-NAD which has no absorbance at 340 nm, b-NADH absorbs at 340 nm (EmM = 6.22). The increase in absorbance at 340 nm with the formation of b-NADH is the basis for measurement of activity of many enzymes.

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Beskrivning: Polyvinylpyrrolidone is a water-soluble polymer made from the monomer N-vinylpyrrolidone. Typically used as thickeners, dispersing agents, detoxicant, complexing agent, lubricants and binders.

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Beskrivning: Amphotericin B is a polyene antifungal antibiotic from <i>Streptomyces sp.</i> It has a high affinity for sterols, primarily ergosterols, of fungal and bacterial cell membranes.

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Artikel nummer : (ICNA091672048)

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Beskrivning: Kanamycin is an aminoglycoside antibiotic effective against mycoplasma, gram-positive and gram-negative bacteria. It is used in biotechnology applications to inhibit protein synthesis.

UOM: 1 * 50 mL

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Beskrivning: A chromogenic substrate for alkaline phosphatase.

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Beskrivning: D-Limonene is a chiral intermediate for natural product synthesis. It is used as a renewably based solvent in cleaning products.

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Beskrivning: Cholesterol is a component used for the preparation and study of artificial model membranes. One example is a study of valinomycin induced changes in membrane potentials of red blood cell and phospholipid (phosphatidylcholine from egg yolk plus cholesterol) vesicle suspensions. Positively charged cyanine dyes were used that fluorimetrically respond to the change in potential. Cholesterol is suitable for use in liposome preparations. It is standard for clinical work.

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Beskrivning: p-Iodonitrotetazolium Violet is used as a electron acceptor for the colorimetric assay of various dehydrogenases.