74427 resultater for: "MP Biomedicals"

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Potassium ferrocyanide trihydrate is a salt of the Fe(CN)₆^4- ferrocyanide ion. Ferrocyanide is a reducing iron species, being oxidised from ferrous Fe(II) to ferric Fe(III).

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Glutaraldehyde is also referred to as glutaral, 1,5-pentanedione, potentiated acid glutaraldehyde, sonacide, and glutardialdehyde. Pure monomeric glutaraldehyde has an absorbance peak at 280 nm and the main impurity, possibly a polymer, has an absorbance peak at 235 nm. Upon analysis, this product is 25-28% by titration and has an A235/A280 ratio of not more than 0,5. Monomeric glutaraldehyde may be purified from polymeric glutaraldehyde by treatment with charcoal (5% w/v) and subsequent filtration (3-4 times). Untreated glutaraldehyde has an absorption at 235 nm that is 5 times greater than that at 280 nm, whereas, after three washings the values are about equal. Glutaraldehyde is a bifunctional cross-linking reagent, reacting with NH2 groups to form Schiff's bases.

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A phase transfer catalyst ideal for the precipitation of DNA

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Potassium Iodide is known as Potassium Salt of Hydriodic Acid [HI], available in white crystalline powder form. It is a mild reducing agent and can be easily oxidized to Iodine by powerful oxidizing agent like chlorine. With elemental iodine it forms I3 (tri iodide), the salts of tri iodide are highly water soluble.
Readily soluble in water.

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Lipoprotein- cholesterol is a mixture of lipoprotein cholesterol, phospholipids and fatty acids.

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Kinetin is an adenine-type cytokinin phytohormone.

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One unit decomposes 1,0 µmole of hydrogen peroxide per minute at pH 7,0, 25 °C.

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AlbumiNZ™ Low Fatty Acid BSA is chromatographically purified from New Zealand-sourced bovine plasma in an ISO quality system assuring complete traceability and consistent high quality. This albumin has very low endotoxin and low free fatty acids, is tested for the absence of viruses according to 9CFR and has the highest possible biosafety level.

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Specific Surface Area: 150 m2/g
Particle Size: 63-200 µm
Weight: 0.8 g/ml pH: 10

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Storage: Room Temperature
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 free flowing 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.
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. Guanidine hydrochloride 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.

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Palmitic acid, or hexadecanoic acid is one of the most common 16 carbon saturated fatty acids found in animals and plants

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Inhibitors: p-Chloromercuribenzoate, lodoacetamide, heavy metal ions (Zn²⁺, Fe²⁺, Zn²⁺, Cd²⁺, Cu²⁺, Pb²⁺, Ag⁺, Hg²⁺), Ionic Detergents (SDS, DAC, etc.). Contaminants: The preparation is practically free from other glycosidases (a-galactosidase, a-,b-glucosidase, a-,b-mannosidase, etc.) and proteinase. Principle: o-Nitrophenyl-b-D-galactopyranoside (ONPG) b-galactosidase > o-Nitrophenol (ONP) +D-Galactose. The appearance of o-nitrophenol is measured at 410 nm by spectrophotemetry. Thermal stability: below 50 °C (pH 7,3; 15 min) (Lit.), Optimum Temperature: 50 to 55 °C (Lit.).

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Superbroth is a rich medium with high levels of tryptone and yeast extract used for obtaining high yields of E. coli cells and lambda bacteriophages.

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Acriflavine Hydrochloride is a mixture of 3,6-diamino-10-methylacridinium chloride and 3,6-diaminoacridine (approximately an 9 to 1 mixture respectively).

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Guanosine-5'-triphosphate, a purine nucleotide is required as a coenzyme for protein biosynthesis in a cell-free system.

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Xylose is the main building block for hemicellulose, the acid-catalysed degradation of hemicellulose gives furfural, a specialty solvent in industry and a precursor to synthetic polymers. In animal medicine, xylose is used to test for malabsorption by administration in water to the patient after fasting.

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Deoxycholic acid is a bile acid formed by metabolism of cholate.

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One unit will hydrolyse 1,0 µmole of o-nitrophenyl-beta-D-galactoside to o-nitrophenol per minute at pH 4,5 and 30 °C.

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Anti-Actin Mouse Monoclonal Antibody [clone: B4]

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This product is fluorescein-5-isothiocyanate (FITC "Isomer I")-conjugated goat affinity purified F(ab')2 fragments to mouse immunoglobulins (IgG,IgA,IgM) and buffer salts.The total protein is measured by absorbance (A)280 nm); F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the affinity purified F(ab')2fragments is standardized with an in-house control by immunoelectrophoresis. The affinity purified F(ab')2 fragment is tested for purity at 10 mg/mL using immunoelectrophoresis. The product is goat F(ab')2; no trace of albumin, whole molecule IgG or Fc is detected. This product contains sodium azide. To prevent formation of toxic vapors, do not mix with strongly acidic solutions. To prevent formation of potentially explosive metallic azides in metal plumbing, always wash into drain with copious quantities of water.

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The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized with an in-house control by immunoelectrophoresis; No trace of albumin is detected. Antibody activity to non-immunoglobulin serum proteins is not present.

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One unit catalyses the liberation of 1 mmole reducing group (calculated as maltose per minute at pH 6,9 at 20 °C).

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Trehalose Dihydrate is an osmolyte, a chemical chaperone. It contains many properties that allow it to stabilize partially unfolded protein molecules and inhibit protein aggregation. It include a low chemical reactivity, high glass transition temperature, existence of numerous polymorphs, nonreducing nature, and high affinity for water molecules. Additionally, Trehalose has been noted to bind to expanded polyglutamines and stabilize partially unfolded polyglutamine-containing proteins.

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Storage: Store at room temperature (15-30 °C)
L-Tyrosine is one of the three aromatic amino acids, and is formed from the hydroxylation of phenylalanine.
L-Tyrosine is used in cell culture media and is a component of MEM amino acids solution. L-Tyrosine has been used in a cell culture study of the amino acid transport system b0,+ in epithelial cells isolated from chicken jejunum.

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This product is the lyophilized powder of fluorescein-5-isothiocyanate (FITC "Isomer I")-conjugated goat IgG fraction to human IgM (5Fc µ) and buffer salts.The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. The IgG fraction is tested for purity and specificity at 40 mg/mL using immunoelectrophoresis. The product is mostly goat IgG; no trace of albumin is detected.

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This product is the lyophilized powder of human IgG positive control and buffer salts. IgG is a purified antigen. Immunoglobulin G (IgG) is one of the most abundant proteins in serum. IgG is important for our defence against microorganisms and the molecules are produced by B lymphocytes as a part of our adaptive immune response. The IgG molecule has two separate functions: to bind to the pathogen that elicited the response and to recruit other cells and molecules to destroy the antigen. The variability of the IgG pool is generated by somatic recombination and the number of specificities in an individual at a given time point is estimated to be 1011 variants.

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The total protein is measured using the Biuret procedure, with bovine albumin as a standard. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. F(ab')2 fragments are tested for purity and specificity at a minimum of 20 mg/mL using immunoelectrophoresis. The product is goat F(ab')2; no trace of albumin, whole molecule IgG or Fc is detected.

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L-cysteine is used in producing antioxidants. It also promotes healing of severe burns, fat burning and helps build muscle and promotes the activity of white blood cells. It is a precursor in the food, pharmaceutical, and personal care industries.

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Potato dextrose agar (PDA) is suited for the cultivation of yeasts and moulds from dairy products and other foods. It may also be used to induce sporulation in many fungi.

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Basal Medium Eagle is suited for the isolation and cultivation of non-fastidious and fastidious microorganisms from a variety of clinical and non-clinical specimens. It can also be used as a selective isolation medium by adding antimicrobial agents.