50042 Résultats pour : "Alsto"
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Organic reference standard, Bisphenol B, analytical standard, Supelco®
Supplier: Merck
Bisphenol B is a congener of bisphenol A, used primarily for the manufacturing of phenolic resins and is also a potent food contaminant.
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Demecolcine ≥98% (par HPLC), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Demecolcine has been used as a microtubule depolymerizing agent. It has also been used to inhibit mitotic division.
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4-Nitrobenzenediazonium tetrafluoroborate 97%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
4-Nitrobenzenediazonium tetrafluoroborate has been used in ellipsometry. It has also been used for surface modification of carbon nanotubes (CNTs).
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Organic reference standard, 2,6-Dimethoxyphenol, analytical standard, Supelco®
Supplier: Merck
2,6-Dimethoxyphenol can find applications mainly as a substrate of laccases catalysis and also determine its activity in aqueous solution. It can also be used as a potential marker compound for emission of smoke in the atmosphere from wood.
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Triethylammonium bicarbonate buffer, for HPLC, LiChropur™, Supelco®
Supplier: Merck
1M Buffer, also for use in ion-exchange chromatography and electrophoresis.
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Sodium diatrizoate hydrate ≥98%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Sodium diatrizoate hydrate has been used in spore purification. It has also been used in the isolation of plasma lymphocytes, monocytes, and dendritic cells. Sodium diatrizoate is also suitable as a density gradient reagent in blood cell separation. It has also been utilised as a radiological contrast agent.
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Organic reference standard, Lutein solution, analytical standard, Supelco®
Supplier: Merck
Lutein is a carotenoid, found in human serum and is also present in retina and macula lenses.
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Bromobimane (mBBr) ≥97%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Bromobimane is also known as monobromobimane. It is also a known probe for thiols and is a fluorescent reagent activated upon a photolysis reaction.
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Chlorure de tétrabutylammonium 95% tech. contains also bromide
Supplier: Thermo Fisher Scientific
Chlorure de tétrabutylammonium 95% tech. contains also bromide
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3-Hydroxy-4-(2-sulfonato-4-(4-sulfonatophénylazo)phénylazo)naphtalène-2,7-disulfonate de tétrasodium 75% (teneur en colorant), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Ponceau S (C.l. 27195) is an anionic, very hydrophilic disazo dye. It is also known as fast ponceau 2B. Ponceau S is widely used to stain proteins on gel electropherograms. It is a suitable stain for proteins adsorbed onto nitrocellulose membranes. It also has applications in botanical staining manuals as a stain for sieve plate elements.
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Organic reference standard, epsilon-Caprolactam, analytical standard, Supelco®
Supplier: Merck
ε-Caprolactam is used in the manufacture of polyamides. It is also used to produce nylon 6.
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Nitrite de isopentyle (mélange d'isomères) 96%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Isopentyl nitrite, also known as isoamyl nitrite, is an oxidant, and nitrosating agent for phosphoramidites which rearrange into phosphotriesters during nitrosation.
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Chlorure de 3,6-bis(diéthylamino)xanthylium ≥30% (teneur en colorant), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Pyronin B is a chromogenic reagent, and is optimal for myeloperoxidase staining, which is useful in cytomorphological diagnosis and also in leukaemia categorisation.
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Supelco® TraceCERT® Organic Reference Standard, Isocarbamide
Supplier: Merck
The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques. Isocarbamide CRM may also be used as given below:
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Organic reference standard, disperse yellow 3, analytical standard, Supelco®
Supplier: Merck
Disperse Yellow 3 is an yellow azo dye which is majorly used in textile industry. It also has carcinogenic properties.
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Organic reference standard, 4-Butylresorcinol, analytical standard, Supelco®
Supplier: Merck
4-n-butylresorcinol is a derivative of resorcinol and a potent human tyrosinase inhibitor. It may be used to decrease skin irritation and is also known to inhibit melanin production.
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Organic reference standard, Sodium metabisulfite, analytical standard, Supelco®
Supplier: Merck
Sodium metabisulphite is primarily used as an antioxidant and antimicrobial agent in a wide variety of foods and drugs. It is also used as the main additive in the prevention of melanosis.
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Acriflavine réactif de marquage fluorescent, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Acriflavine also interacts with HIF-1α (hypoxia-inducible factor 1 α) and HIF-2α, and thereby suppresses dimer formation of HIF-1 and transcriptional function. It also has negative effect on tumor growth and vascularization. Acriflavine also exhibits trypanocidal, antibacterial and antiviral activities.
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Chlorazol black E, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Chlorazol Black has been used to monitor the infection of mycorrhizal Allium porrum in plant roots. It has also been used for the staining of copepods.
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Organic reference standard, Bis-(2-chloroisopropyl) ether, analytical standard, Supelco®
Supplier: Merck
Bis-(2-chloroisopropyl) ether is a colourless liquid, used as a solvent for greases, waxes and fats. It can also find applications in manufacturing of textiles, spotting agents and cleaning solutions.
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2,3-Naphtalènediamine ≥95% (par HPLC), en poudre, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
2,3-Diaminonaphthalene is also known as 2,3-Naphthalenediamine or DAN. It is one of the isomers of naphthalene bearing two amino groups, which are also called naphthalenediamines. They are usually prepared by reducing the nitronaphthalene derivative and aminating the subsequent hydroxynaphthalene derivative.
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Chlorure de 3-amino-7-dimethylaminophénothiazine-5-ium ≥70% (teneur en colorant), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Azure A is a basic cationic dye. The combination of azure A and silver staining is used for the quantification of glycosaminoglycans in agarose gels. It is also used for the staining of chromosomes in the nucleus. It is a main component of the azure B/polychromed methylene blue – eosin stains family, also referred to as the Romanowsky stain.
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Primuline sodium salt 50% (teneur en colorant) C.I 49000
Supplier: SIGMA ALDRICH MICROSCOPY
Primuline, also known as direct yellow 59 or primuline yellow, is considered to be a more sensitive and non-destructive dye for lipids.
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Chlorure de 3-amino-7-dimethylaminophénothiazine-5-ium 70% (teneur en colorant) certified by the Biological Stain Commission, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
The combination of azure A and silver staining is used for the quantification of glycosaminoglycans in agarose gels. It is also used for the staining of chromosomes in the nucleus. Azure A is a main component of the azure B/polychromed methylene blue-eosin stains family, also referred to as the Romanowsky stain. Azure A is a basic cationic dye.
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Organic reference standard, Ponceau 6R, analytical standard, Supelco®
Supplier: Merck
Ponceau 6R is a red azo dye which is widely used as a food colorant and also used in histology staining. It is soluble in water and slightly soluble in ethanol.
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Supelco® TraceCERT® Organic Reference Standard, Thiofanox
Supplier: Merck
The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques. Thiofanox CRM may also be used as given below:
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Fast black K salt, "Practical", Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Fast black K (C.l. 37190) is a lipophilic amino-substituted monoazo dye. It is also known as Brentamine fast black K salt.
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Noir amido 10B 80% (teneur en colorant), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Naphthol blue black (NBB) is an textile diazo dye, with high photo- and thermal-stability. Photoelectrochemical degradation of this dye yields colorless quinone as end product. Pure grade of NBB is generally used for dyeing foodstuffs, drugs and cosmetics. It is also used as a protein stain in chromatography and electrophoresis and as a biological stain. Commercial grade of NBB is a widely used textile dye. It is used in dyeing wool, nylon, silk and in textile printing. In addition, it is also employed for colouring of soaps, anodised aluminum and casein, wood stains and writing ink preparation.
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Acridine orange base ≥75% (teneur en colorant), Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Acridine Orange base (3,6-Bis(dimethylamino)acridine) is a cell-permeable fluorescent dye that binds to nucleic acids. It emits green fluorescence when bound to dsDNA and red fluorescence when bound to ssDNA or RNA. It is also known to be a positive solvatochromic dye. Acridine orange has also been used as a lysosomal dye. It is widely used to detect the presence of homeopathic potencies.
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Amberlite® XAD4, Pore dim.: 100 Å 20 - 60 mesh résine échangeuse d'ions, Supelco®
Supplier: Merck
Amberlite XAD4, a nonpolar absorbent, used for stripping and concentration of organic compounds. It is also used in developing chelating ligands due to its properties like, porosity, high surface area, purity and durability.