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Beschreibung: Lead tetraacetate smoothly induces the addition of difluorodiiodomethane to alkenes and alkynes.

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Beschreibung: Ibuprofen an anti-inflammatory and analgesic.

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Beschreibung: Ammonium acetate is a chemical compound which is derived from the reaction of ammonia and acetic acid. Ammonium acetate is volatile at low pressures. Because of which it has been used to replace cell buffers with non-volatile salts, in preparing samples for mass spectrometry. It is used as a buffer for mobile phases for HPLC with ELSD detection.

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Beschreibung: Chromogenic substrate for trypsin and other proteolytic enzymes.

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Beschreibung: Ponceau S is used as protein stain for electrophoresis.

Lieferant: MP Biomedicals

Beschreibung: Storage: Room Temperature, desiccate, store under nitrogen.
Dimethyl Sulfoxide is a dipola, aprotic solvent. It has been shown to accelerate strand renaturation (1-10% concentration) and is believed to give the nucleic acid thermal stability against depurination.
Dimethyl Sulfoxide is used to enhance dermal absorption of many chemicals, as a solvent for many organic and inorganic compounds including fats, carbohydrates, dyes, resins, and polymers, in antifreeze or hydraulic fluids, as a cryopreservative for cell cultures, oxidation of thiols and disulfides to sulfonic acids, as a PCR cosolvent to help improve yields, especially in long PCR. DMSO is routinely used in polymerase chan reaction (PCR), amplification of cDNA libraries, DNA sequencing, column-loading buffers for poly (A)+ RNA selection, buffers for the transformation of competent E. coli, and transfection protocols.
To prepare sterile solutions use a teflon or nylon membrane to sterile-filter the DMSO - do not use a cellulose acetate membrane.

Lieferant: MP Biomedicals

Beschreibung: Dithioerythritol is an erythro isomer of 2,3-dihydroxy-1,4-dithiolbutane, and an isomer of 1,4-dithiothreitol which is a reagent for maintaining thiols in the reduced state; prevents oxidation of sulfhydryl-containing proteins during SDS-polyacrylamide gel electrophoresis. It also quantitatively reduces disulfides.

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Beschreibung: Yeast Extract Powder is a vacuum-dried extract concentrate of Baker's yeast containing the B-complex factors of approximately three times the weight of ordinary dry yeast. This product is a vacuum dried autolyzed yeast extract produced from 100% Baker's yeast. It is a concentrated source of soluble protein components, carbohydrates, and B Complex vitamins natural to yeast. Water soluble portion of autolyzed yeast with intact B-complex vitamins. Yeast extract is a mixture of amino acids, peptides, water soluble vitamins and carbohydrates and can be used as additive for culture media.
Yeast Extract Powder is a highly nutritive medium recommended for plate count of microorganisms in water. It is used as a bacteriological media component for a variety of microorganisms and molecular genetics applications. Also suitable for alternative to beef extract.

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Beschreibung: Activators: Papain is activated by cysteine, sulphide, sulphite and more. It is enhanced when heavy metal binding agents such as EDTA are also present. N-bromosuccinimide enhances the activity. Inhibitors: Substances which react with sulphydryl groups including heavy metals, carbonyl reagents. Aldehydes are papain inhibitors. Benzoylamidoacetonitrile is an inhibitor. See Shapira and Arnon (1967a and b) on antibody inhibitors. Papain may be inactivated by H₂O₂ generated by γ-irradiation of H₂O⁻ the active SH group being oxidised to sulphenic acid. Specific inhibitors are AEBSF, antipain, cystatin, E-64, leupeptin, PMSF, TLCK and TPCK.

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Beschreibung: Lactic acid is an α hydroxyl carboxylic acid produced from pyruvate by the enzyme lactate dehydrogenase (LDH). Lactate is one of the main components of Ringer′s lactate or lactated Ringer′s solution. It is a fermentation acid from milk or carbohydrates.

Artikel-Nr: (ICNA0210296225)

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Hersteller Artikel Nummer : 0210296225

Beschreibung: Soluble in chloroform 50 mg/ml - clear, colourless liquid.

UOM: 1 * 25 g

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Beschreibung: β-D-Glucose is a main source of energy for living organisms. It is combined into glucosides, disaccharides, oligosaccharides, the polysaccharides (cellulose and starch), and glycogen. It may contain up to 10% of α-isomer.

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Beschreibung: Ampicillin sodium salt is a semi-synthetic derivative of penicillin, active as a broad-spectrum antibiotic. It is inactivated by beta-lactamases and for this reason a beta-lactamase inhibitor should be considered when using ampicillin. Against gram-positive bacteria, ampicillin has a similar mode of action as benzylpenicillin; against gram-negative bacteria, it has a similar mode of action as chloramphenicol and tetracyclines. In E. coli it inhibits cell wall synthesis.

Lieferant: MP Biomedicals

Beschreibung: Poly-L-lysine is a positively charged amino acid polymer. Poly-lysine binds to DNA, red cell membrane and any negatively charged protein. It is typically used as a coating substrate for culture dishes, slides, etc. It enhances electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. When adsorbed to the culture surface, poly-lysine increases the number of positively charged sites available for cell binding.

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Beschreibung: Triolein is a symmetrical triglyceride.

Artikel-Nr: (ICNA113031012)

Lieferant: MP Biomedicals

Hersteller Artikel Nummer : 113031012

Beschreibung: SOC medium is a rich media used primarily in the recovery step of <i>Escherichia coli</i> competent cell transformations.

UOM: 1 * 227 g

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