1819 Results for: "Pulverizer"
Cesium chloride ≥99.0%, white crystalline powder, Reagent Grade
Supplier: MP Biomedicals
Cesium chloride, an inorganic compound, is an important source of cesium ions in a variety of applications. Its crystal structure forms a major structural type where each cesium ion is coordinated by 8 chlorine ions. Cesium chloride occurs naturally in mineral waters and as an impurity in carnallite (up to 0.002%), sylvite and kainite. Less than 20 tonnes of CsCl is produced annually worldwide, mostly from a cesium-bearing mineral pollucite.
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3-Isobutyl-1-methylxanthine, white powder
Supplier: MP Biomedicals
IBMX has been shown to be a potent, non-specific inhibitor of adenosine 3',5'-cyclic monophosphate phosphodiesterase (cAMP PDE)4, significantly more effective than theophylline. Also inhibits cGMP phosphodiesterases. IBMX inhibits cyclic nucleotide PDE with subsequent inhibition of cyclic nucleotide hydrolysis, resulting in accumulation of cyclic AMP and guanosine 3',5'-cyclic monophosphate.
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Bromthalein disodium salt, light blue to off white powder
Supplier: MP Biomedicals
Sulfobromophthalein (BSP) is a dye with a high affinity for organic anion transporting polypeptides (OATPs) and has been used as a substrate for multidrug resistance associated protein 2 (Mrp2). BSP is transported into hepatocytes by OATPs and, after conjugation to glutathione, is excreted into bile by Mrp2. It was found to inhibit the aldo-keto reductase ARK1C20.
Sulfobromophthalein (BSP) is used in diagnosis of hepatic disorders. It is also used for the quantitative determination of proteins.
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Polyethylene glycol, M.W. ∼ 3,400, white powder
Supplier: MP Biomedicals
Polyethylene glycol (PEG) is a condensation polymer of ethylene oxide and water. PEGs are susceptible to oxidative degradation in the presence of air. Minimizing the exposure of PEG to elevated temperatures and/or exposure to oxygen, or addition of an antioxidant can limit the amount of degradation. PEGs do not hydrolyze or deteriorate upon storage. PEGs do not support the growth of molds. PEG is incompatible with phenol and may reduce the antimicrobial action of other preservatives.
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Protamine sulphate, white powder
Supplier: MP Biomedicals
Protamine sulphate is a purified mixture of simple protein principles obtained from the sperm or testes of suitable species of fish, which has the property of neutralizing heparin. Because of having much basic amino acids (mostly arginine) protamine contains far greater nitrogen than other proteins. Its molecular weight is relatively small. Histone and other basic proteins in the testes of unmatured fishes convert into protamine along with the growth of the fishes. In the testes protamine takes the form of nucleoprotamine linked with DNA.
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Sodium dodecyl sulphate (SDS) ≥99%, white powder
Supplier: MP Biomedicals
SDS is an anionic detergent and wetting agent that is effective in both acid and alkaline solutions.
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Sampling spoon curved, long handle, disposable Bio
Supplier: BURKLE
The spoon with curved spoon bowl is suitable for a wide range of different media including powders, granulates, pastes and liquids. The angled spoon shape is also good for reaching into the corners of a container. The long handle of the plastic spoon makes it possible to empty residue from large containers easily and can also reach into places that are hard to reach such as jerrycans with narrow necks.
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Folinic acid calcium salt pentahydrate, pale yellow powder
Supplier: MP Biomedicals
Folinic acid calcium salt, pentahydrate offsets the effects of folic acid antagonists that act by binding dihydrofolate reductase and blocking the conversion of folic acid to tetrahydrofolate.
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Carboxymethyl cellulose sodium salt, white powder, high viscosity
Supplier: MP Biomedicals
Carboxymethyl Cellulose Sodium Salt is a high viscosity carboxymethylcellulose (CMC); the viscosity of a 1% solution in water at 25 °C is 1300-2200 centipoise (cps). The viscosity is both concentration and temperature dependent. As the temperaure increases, the viscosity decreases. As the concentration increases, the viscosity increases.
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Test sieves with stainless steel frame
Supplier: NEXOPART
These test sieves are suitable both for hand sieving as for dry and wet sieving with all Haver test sieve shakers. Bulk material of different branches can be classified and separated with these test sieves; industrial rocks and minerals, food, glass, ceramic, granulates, powders, fertilizer, etc.
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HyClone™ SFX-Insect™ cell culture media
Supplier: HyClone products (Cytiva)
HyClone™ SFX-Insect™ with L-glutamine is a versatile protein-free cell culture medium developed through metabolic pathway design to support the growth of multiple insect cell lines and production of a variety of recombinant proteins. It provides superior growth of many key insect cell lines, including Sf9, Sf21, and High Five (T.ni), requiring minimal adaptation.
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DURAN® Funnels, Powder
Supplier: DWK Life Sciences
DURAN®, borosilicate glass 3.3, clear.
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Agarose standard, white powder for molecular biology
Supplier: MP Biomedicals
Standard agarose is a purified linear galactan hydrocolloid isolated from agar or agar-bearing marine algae with an Electroendoosmosis (EEO) value of 0.12 making it an essential component in chemical separation techniques.
Standard agarose is a very low electroendosmosis agarose (EEO) which is recommended for sharp resolution of nucleic acid fragments greater than 400 bp and up to 8000 bp. This Standard Agarose may be used at concentrations between 0.8 % and 2 %. Southern and Northern transfers can be performed efficiently from them.
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5-Phospho-D-ribose 1-diphosphate pentasodium salt, white powder
Supplier: MP Biomedicals
5-Phosphorylribose-1-pyrophosphate Sodium Salt Hydrate has been used in a study to assess the relationship between the muscarinic receptor cationic current and internal calcium in guinea-pig jejunal smooth muscle cells. It has also been used in a study to investigate inhibitors of the bacterial cell wall biosynthesis of the enzyme Mur D.
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D-(+)-Melibiose monohydrate, white powder
Supplier: MP Biomedicals
Melibiose is a reducing disaccharide formed by an alpha-1,6 linkage between galactose and glucose (D-Gal-α(1→6)-D-Glc). It can be formed by invertase mediated hydrolysis of raffinose, which produces melibiose and fructose. Melibiose can be broken down into its component saccharides, glucose and galactose, by the enzyme alpha-galactosidase.
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di-Ammonium oxalate monohydrate ≥99.0%, powder ACS
Supplier: MP Biomedicals
Chloride ≤0,002% Iron ≤2 ppm sulphate ≤0,002%
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Hook connectors
Supplier: USBECK Laborgeräte
Nickel plated brass screw with plastic handle.
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di-Potassium hydrogen phosphate, anhydrous ≥98%, white crystalline powder ACS
Supplier: MP Biomedicals
Potassium phosphate is typically used as a component for a wide variety of media used in the culture of microorganisms, as a component in phosphate buffered saline (PBS). In addition to helping maintain pH, it supplies essential phosphate.
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Cell culture media, high growth enhancement medium, MP Biomedicals
Supplier: MP Biomedicals
High Growth Enhancement Medium is a modification of DMEM in which 3,6 g/L fructose is substituted for glucose, resulting in better pH control and higher cell yields. Fructose is metabolised slower than glucose, resulting in slower acid build up. This media is recommended for the growth and support of cells on microcarrier matrices.
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Indigo carmine, dark powder
Supplier: MP Biomedicals
Indigo Carmine is a blue, anionic indigoid dye.
Indigo Carmine is useful in the staining of Negri bodies. It can be used as a contrast stain for plasma when red nuclear stains are used.
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Ampicillin sodium salt, white powder, Cell Culture Grade
Supplier: MP Biomedicals
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.
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Heparin sodium salt (from porcine), Anti-Xa Activity=≥65 IU/ mg., white powder
Supplier: MP Biomedicals
Heparin is a polymer classified as a mucopolysaccharide or a glycosoaminoglycan. It is biosynthesized and stored in mast cells of various mammalian tissues, particularly liver, lung and mucosa. It is made up of repeated disaccharide units consisting of 1,4-linked L-iduronic acid and D-glucosamine. The iduronic acid residues are O-sulfated at position 2, and the glucosamine residues are N-sulfated and O-sulfated at position 6. The repeated block can be interrupted or extended by residues of beta-D-glucuronic acid and 6-O-sulfated N-acetyl-alpha-D-glucosamine.
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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside), white powder
Supplier: MP Biomedicals
5-Bromo-4-chloro-3-indolyl b-D-galactopyranoside, commonly known as X-Gal, is a histochemical substrate for b-galactosidase. X-Gal is cleaved by b-galactosidase to yield an insoluble blue precipitate.
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Acrylamide ≥99%, white crystalline powder for molecular biology
Supplier: MP Biomedicals
Storage: Room Temperature, desiccate.
Acrylamide is prepared on an industrial scale by the hydrolysis of acrylonitrile by nitrile hydratase.
Acrylamide is a monomer used in a variety of synthetic processes to form polymers and copolymers. It polymerizes in the presence of free radicals in aqueous solutions. It is usually used to prepare polyacrylamide gels for electrophoresis separation of biomolecules.
Acrylamide is an extremely hazardous substance in either the powder form or liquid form. Once polymerized, the polyacrylamide is considered safe to handle under normal laboratory conditions. Acrylic Acid Content -≤0.001%
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L(+)-Lactic acid ≥98%, white crystalline powder
Supplier: MP Biomedicals
Lactic acid is fermentation acid from milk or carbohydrates. It occurs in the blood and muscle fluid of man and animals. The lactic acid concentration increases in muscle and blood after vigorous activity. It is also present in other organs including liver, kidney, and thymus gland, and other body fluids including amniotic fluid.
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Cell culture media, Iscove's Modified Dulbecco's Medium (IMDM)
Supplier: Biowest
In 1976, Guilbert and Iscove demonstrated that precursor cells of erythrocytes and macrophages could be cultured in a reduced-serum medium supplemented with albumin, transferrin, lecithin, and selenium. Iscove's medium is a modification of Dulbecco's Modified Eagle's Medium (DME) containing selenium, additional amino acids and vitamins, sodium pyruvate, HEPES buffer, and potassium nitrate instead of ferric nitrate. Further studies have demonstrated that Iscove's medium will support murine B lymphocytes, haemopoietic tissue from bone marrow, B-cells stimulated with lipopolysaccharide, T-lymphocytes, and a variety of hybrid cells.
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L(-)-Proline ≥99%, white powder
Supplier: MP Biomedicals
L-Proline is an amino acid. The conjugation of L-proline with imidazolium-based ionic liquid (IL)-modified magnetic nanoparticles forms a catalyst that can be magnetically recovered and employed in direct asymmetric aldol reaction. The solubility and stability of ezetimibe (EZT) has been reported to enhance on cocrystallization with L-proline.
L-Proline has been used:
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D-(+)-Trehalose dihydrate ≥99%, white powder
Supplier: MP Biomedicals
Trehalose is a non-reducing sugar formed from two glucose units joined by a 1-1 alpha bond. It is thought to provide plants and animals with the ability to withstanding periods of dehydration.
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4-Nitrophenyl phosphate disodium salt hexahydrate (pNPP) ≥97%, powder, BioReagent cell culture reagent, Sigma-Aldrich®
Supplier: Merck
Chromogenic substrate for the determination of acid and alkaline phosphatases.
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L(+)-Asparagine, anhydrous ≥99%, white powder
Supplier: MP Biomedicals
L-Asparagine is used in cell culture media and is a component of MEM non-essential amino acids solution. L-Asparagine has been shown to enhance ornithine decarboxylase activity in cultured human colon adenocarcinoma Caco-2 cells and in cultured IEC-6 intestinal epithelial cells. Spore germination in Bacillus subtilis has been increased in the presence of L-asparagine.