1819 Results for: "Pulverizer"
Adenosine-5'-triphosphate disodium salt (ATP disodium salt) hydrate ≥96%, white powder
Supplier: MP Biomedicals
Adenosine 5'-triphosphate (ATP) disodium salt hydrate is a multifunctional nucleotide, which is essential in a variety of cellular functions.
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Calcium chloride ≥99%, white powder cell culture reagent
Supplier: MP Biomedicals
Calcium Chloride is a salt of calcium and chloride. It behaves as a typical ionic halide, and is solid at room temperature.
Calcium chloride is a commonly used reagent in biochemistry. It plays important roles in many biological processes, including signal transduction, muscle contraction, and maintenance of cell membrane and cell wall stability. Calcium chloride is used in the preparation and transformation of competent E. coli and in the transfection of eukaryotic cells with either plasmid DNA or high molecular weight genomic DNA. It has been used in the stabilization and two dimensional crystallization of the NADH-ubiquinone oxidoreductase (complex I) from Escherichia coli. It is also used as a dessicant, coagulant in rubber manufacturing and as an accelerator in the concrete industry.
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Sodium dodecyl sulphate (SDS) ≥99%, white powder
Supplier: MP Biomedicals
SDS is an detergent typically used to solubilize and denature proteins for electrophoresis. 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. SDS is used in Protein Electrophoresis & Blotting.
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Ammonium peroxodisulphate (APS) ≥98%, white crystalline powder for molecular biology
Supplier: MP Biomedicals
Storage: Store at Room Temperature (15-30 °C), dessicate.
Ammonium persulfate is a strong oxidizing agent. It is a radical initiator.
Ammonium persulfate is a polymerization catalyst used with TEMED for polyacrylamide gel formation. APS has also been utilized to study protein-protein interactions via photoinitiated crosslinking chemistry. Other applications of APS include its use as a reducer and retarder in photography, the manufacture of aniline dyes, electroplating, the decolorizing and deodorizing of oils.
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Bromocresol purple sodium salt, orange powder
Supplier: MP Biomedicals
Bromocresol purple sodium salt is typically used as a pH indicator (5,2 - 6,8 : yellow to blue-purple). Used in spectrophotometric determination of serum-albumin.
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p-Toluenesulphonic acid monohydrate ≥99%, white powder
Supplier: MP Biomedicals
p-Toluenesulfonic acid monohydrate is an organic-soluble acid catalyst in organic synthesis. The catalyst has been incorporated in the esterification of carboxylic acids or transesterification of esters.
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Diammonium-L(+)-tartrate, white crystalline powder
Supplier: MP Biomedicals
Ammonium tartrate, the ammonium salt of tartaric acid, is used in such applications as cell culture and chromatography.
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2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride ≥99%, yellow powder
Supplier: MP Biomedicals
p-Iodonitrotetazolium Violet is used as a electron acceptor for the colorimetric assay of various dehydrogenases.
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Sodium chloride ≥99.5%, white powder cell culture reagent
Supplier: MP Biomedicals
Storage: Store at Room Temperature (15-30 °C)
Sodium chloride is a commonly used chemical which is found widely in nature. It is considered to be an essential nutrient. Excess amounts of sodium chloride can destroy electrolyte balance and cause death in most animals, including humans.
Sodium chloride is used in a wide variety of biochemical applications, including intravenous fluids (normal saline is 0.9% w/v in water), density gradients, a diluent to increase ionic strength in buffers or culture media and in salt-out procedures in the isolation of DNA. It has also been used in high concentrations for preservation of foods since bacteria cannot grow in high salt conditions. Sodium chloride is widely used in protein crystallization.
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Intrinsic factor (from porcine pyloric mucous lining), powder
Supplier: MP Biomedicals
Preparation Method: MP Intrinsic Factor is produced from the pylorus mucous membrane of the pig, of which only a small part is used. Only the part which, according to histological examinations has proved to have a high content of Intrinsic Factor, is used.
Applications: Intrinsic Factor is used in the treatment not only of classical pernicious anaemia, but also in the treatment of other macrocytic anaemias, where it replaces the Intrinsic Factor which may be lacking in the patient's own gastric juice. In this way Intrinsic Factor is recommended against anaemias that appear 6 to 12 months after serious gastric operations, and against anaemias that are secondary effects of the treatment with certain medicines, e.g. against epilepsy. However, the dietetic use in multi-vitamin preparations is of the greatest importance. In older people there has been observed a degeneration of the gastric mucous membrane, whose secretion of Intrinsic Factor is insufficient to ensure the resorption of the necessary quantity of B-12 from their diet. In order to delay this development it is useful to prescribe a small quantity of Intrinsic Factor with B-12 and other vitamins to these patients.
Product Description: Intrinsic factor is a glucoprotein extracted from the pylorus part of the gastric mucous membrane. Its presence is considered necessary for the absorption of Vitamin B-12.
Unit Definition: The activity is normally indicated in Coli units, the number of which are proportional to the binding power of the substance to Vitamin B-12.
Application Areas: Absorption of vitamin B12
Product Type: Proteins, Enzymes & Peptides
Presentation: Tan Powder
Foreign activity: Salmonella=Negative, E. coli=Negative
NOTES: Standard Plate Count <1000/g
Solubility: Slightly soluble in toluene; practically insoluble in water.
Storage & Handling: -20°C
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Sodium dihydrogen phosphate monohydrate 98.0-102.0%, white powder ACS
Supplier: MP Biomedicals
Sodium phosphate monobasic monohydrate is useful in conjunction with Sodium Phosphate, Dibasic in the preparation of biological buffers. Used in many applications including the purification of antibodies.
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Manganese(II) sulphate monohydrate, pale pink powder
Supplier: MP Biomedicals
Magnesium sulphate is used as a colorant in dyes and red glazes for porcelain. As a trace essential element it is a nutritional factor for all animals; often a supplement in feed. It is used in biological assays to study the effects of manganese on the central nervous system, and to assess exposure limits.
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D-(+)-Maltose monohydrate ~99%, white powder
Supplier: MP Biomedicals
D-(+)-Maltose monohydrate is a component of starch and glycogen. It is a sugar composed of 2 α-D-glucose molecules coupled by an α(1→4) glycosidic bond. It is a reducing sugar with one anomeric carbon not linked in an anomeric bond. It contains a hemiacetal function and can mutarotate. Maltose is one product generated from starch and glycogen by the action of α-amylase.
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D-(+)-Trehalose dihydrate ≥99%, white powder cell culture reagent
Supplier: MP Biomedicals
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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EGTA (ethylene glycol bis(2-aminoethyl ether)-N,N,N',N'-tetraacetic acid) ≥98%, white crystalline powder
Supplier: MP Biomedicals
Ethylene Glycol-bis-(beta-aminoethylether)-N,N,N',N'-tetraacetic Acid is a chelating agent. It is an inhibitor of alkaline phosphatase activity which is useful in ELISA reactions.
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Copper(II) sulphate pentahydrate ≥99%, blue, crystalline powder
Supplier: MP Biomedicals
Cupric sulphate pentahydrate is a common inorganic salt used in analytical chemistry, organic synthesis, and in art to etch zinc plates.
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D-(+)-Maltose monohydrate ≥95%, white powder
Supplier: MP Biomedicals
D-(+)-Maltose Monohydrate is an α(1→4) linked disaccharide of D-glucose.
D-(+)-Maltose Monohydrate is used as a substrate for α-glucosidase. It is also used as a substrate for the identification, differentiation and characterization of enzymes such as maltase(s); maltose α-D-glucosyltransferase(s); maltose-transporting ATPase(s); maltose O-acetyltransferase(s) and maltose epimerase(s) and phosphorylase(s). D-Maltose is used to study maltose-binding proteins and disaccharide transport systems.
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L(+)-Cysteine, white powder cell culture reagent
Supplier: MP Biomedicals
Storage: Store at Room Temperature (15-30 °C). Store Desiccated. Store under nitrogen.
L-Cysteine is a proteinogenic amino acid incorporated into proteins as directed by the genetic code. The thiol-side chain participates in a variety of oxidation/reduction reactions within the cell. The side chain participates in the formation of β bonds that modulate the secondary and ternary structure of proteins. Cysteine is essential and limiting for the formation of glutathione, an important antioxidant, within the cell.
Cysteine has been used in pulse-chase experiments to study protein expression from an inducible promoter. L-Cysteine is used to supplement cell culture media.
NMDA glutamatergic receptor agonist.
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Bis(2-hydroxyethyl)amino tris(hydroxymethyl)methane (BIS-TRIS) ≥99% (by titrimetric analysis), white powder
Supplier: MP Biomedicals
Bis-Tris is zwitterionic buffer, an amine buffer similar to Tris. It exhibits only a very small shift in dissociation constant with respect to temperature. Hydrochloric acid can be used to adjust pH for a Bis-Tris buffer to the desired pH.
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Detergents, powder, rea-pur®
Supplier: HIRSCHMANN
Surface cleaner that rapidly cleans materials such as glass, porcelain, rubber, plastics and metals of oil, grease, wax, resin, silicone, blood, protein and serum residues. Also suitable for cleaning and decontamination of walls and floors. Environmentally friendly as the active agents are biologically degradable.
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Sulphamethazine sodium salt, white powder
Supplier: MP Biomedicals
Sulfamethazine is an antibiotic used to clinically treat bronchitis, prostatitis and urinary tract infections. It is used in disposition and depletion kinetic studies. It is used to develop detection techniques for quantification in fluids such as cows’ milk, honey and swine urine.
Sulfamethazine is an antimicrobial sulfur drug that blocks the synthesis of dihydrofolic acid by inhibiting the enzyme dihydropteroate synthase. Sulfamethazine is a competitive inhibitor of bacterial para-aminobenzoic acid (PABA), which is required for bacterial synthesis of folic acid. It induces CYP3A4 expression and is acetylated by N-acetyltransferase. It exhibits sex dependent pharmacokinetics, metabolized by the male specific isoform CYP2C11. Sulfamethazine is bacteriostatic.
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Coomassie brilliant blue G-250, dark reddish purple powder C.I. 42655
Supplier: MP Biomedicals
Coomassie Brilliant Blue G-250 is a protein stain in electrophoresis. Brilliant Blue G has been used in the Bradford dye-binding protein assay.
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L(+)-Glutamic acid ≥99%, white powder
Supplier: MP Biomedicals
Glutamate is a key compound in cellular metabolism. It is the most abundant excitatory neurotransmitter in the vertebrate nervous system. It also serves as the precursor for the synthesis of the inhibitory GABA in GABA-ergic neurons. This reaction is catalyzed by glutamate decarboxylase (GAD), which is most abundant in the cerebellum and pancreas.
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Light green SF yellowish, purple powder C.I. 42095
Supplier: MP Biomedicals
Acid Green 5 is useful as a general plasma stain, as a histological stain, and a cytological counterstain. Can be use as a cytological counterstain and as a substitute for aniline blue in Gomori′s one-step trichrome procedure.
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Potassium dihydrogen phosphate, anhydrous, white crystalline powder cell culture reagent
Supplier: MP Biomedicals
Storage: Room Temperature, desiccate
Potassium phosphate is a reagent with high buffering capacity. It occurs in several forms: monobasic, dibasic and tribasic (K3PO4). Most pH neutral potassium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
Potassium phosphate monobasic is typically used as a component for a wide variety of media used in the culture of microorganisms. It is widely used in molecular biology, biochemistry, and chromatography. It is a component in phosphate buffered saline (PBS). In addition to helping maintain pH, it supplies essential phosphate.
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Dulbecco's phosphate buffered saline (DPBS), for cell culture, powder format, HyClone™
Supplier: HyClone products (Cytiva)
Balanced salt solution used for multiple cell culture applications (powder form).
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Padlock control centres
Supplier: Brady
These padlock control centres provide safe storage and controlled access to padlocks.
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Mortar grinder, RM 200
Supplier: Retsch GmbH
The mortar grinder RM 200 comminutes inorganic and organic substances to analytical fineness. It can mix and homogenise powders, suspensions and pastes. The grinder is also ideal for the uniform trituration of homeopathic and pharmaceutical products. Depending on the sample, amounts from approx. 10 to 190 ml can be processed in the RM 200.
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Agarose, white powder, high resolution for molecular biology
Supplier: MP Biomedicals
Agarose High Resolution is an intermediate melting agarose with approximately twice the resolution capability of routine agarose. It is a purified linear galactan hydrocolloid isolated from agar or agar-bearing marine algae. It is ideal for the resolution of small DNA fragments in the range 20 bp to 2000 bp.
Agarose high resolution is an intermediate melting and gelling point agarose which exhibits superior sieving characteristics. It is recommended for analytical gels of DNA fragments under 1000 bp and is ideal for small DNA fragments down to 20 bp can be separated on 6 % gels. It resolves fragments differing in size by only 2 bp. Its use avoids the need for PAGE Southern and Northern transfers can be achieved efficiently from them at concentrations up to 2%. DNA fragments can be purified with high efficiency from this agarose gels up to 4% by using either a purification kit or an electroelution system.
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Coomassie brilliant blue G-250, dark reddish purple powder for electrophoresis C.I. 42655
Supplier: MP Biomedicals
Brilliant blue G is a useful dye for SDS gels as it readily stains proteins with minimal background color. Protein bands can be visualised during staining. It has been used in the Bradford dye-binding protein assay.