trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate 98%
Supplier: Thermo Fisher Scientific
trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate 98%
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Palmitic acid
Supplier: Cayman Chemical
Saturated fatty acids are synthesised by both plants and animals from acetyl coenzyme A as a form of long-term energy storage. Palmitic acid is a common 16-carbon saturated fat that represents 10-20% of the normal human dietary fat intake, and approximately 25% of the total plasma fatty acids in plasma lipoproteins. Saturated free fatty acids induce the expression of cyclooxygenase-2. Palmitic acid methyl ester (MP) is a fatty acid ester whose concentration in cells is modulated by methanol. In studies with isolated Kupffer cells, MP inhibits phagocytosis and decreases cell viability. In cells treated with lipopolysaccharide, it also decreases secretion of interleukin-10, TNF-α, nitric oxide, and prostaglandin E2. This effect is thought to occur by the inhibition of NF-κB.
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UV/Vis Calibration Standards
Supplier: HELLMA
The Hellma® calibration standards comply with all necessary standards and regulations and thus offer the highest quality for recalibrating your spectrometer.
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Hexachloroplatinic(IV) acid hexahydrate (37.50% Pt), powder ACS
Supplier: MP Biomedicals
Chloroplatinic acid is used in potassium determination, purification of platinum and in catalysis.
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5,5'-Dithiobis(2-nitrobenzoic acid) (Ellmans reagent, DTNB), Pierce™
Supplier: Thermo Fisher Scientific
Thermo Scientific Pierce Ellman's Reagent (DTNB) reacts with sulfhydryl groups to yield a colored product, providing a reliable method to measure reduced cysteines and other free sulfhydryls in solution.
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Titriplex® IV (trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate) analytical reagent, Supelco®
Supplier: Merck
Titriplex® IV (trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate) analytical reagent, Supelco®
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Trifluoroacetic acid, Uvasol® for spectroscopy, Supelco®
Supplier: Merck
Accurate analytic results in UV/Vis and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol® solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol® solvents offer best UV transmittance. In all specifications the minimum transmittance for five typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph. Eur. and ACS.
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Fuchsin (acid) for tissue, stain, Sigma-Aldrich®
Supplier: Merck
Acid Fuchsin is mainly used as a diachrome and is part of the connective tissue stains. It also works as a pH indicator.
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, HiPerSolv CHROMANORM® for LC-MS
Supplier: VWR Chemicals
, HiPerSolv CHROMANORM® for LC-MS
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Trichloroacetic acid (TCA) ≥99.0%, powder ACS
Supplier: MP Biomedicals
Trichloroacetic acid is used in protein precipitation; has been used to determine protein concentration by quantitative precipitation. Used as a decalcifier and fixative in microscopy. A protocol for the precipitation of nucleic acids can be found in Molecular Cloning.
Stability: Long term storage of aqueous solutions of less than 30% strength is not recommended. Decomposition products are chloroform, hydrochloric acid, carbon dioxide and carbon monoxide. Chloride ≤0.001% ; Nitrate ≤0.002%; Phosphate ≤5 ppm; Sulfate ≤0.02%
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Hydrochloric acid solution 3 M in methanol, LiChropur™ for GC derivatisation, Supelco®
Supplier: Merck
Methanolic HCl (hydrogen chloride in methanol) is particularly useful for preparing methyl esters of volatile (short chain) fatty acids. Fatty acids are esterified by heating them with an anhydrous alcohol in the presence of an acidic catalyst in a sealed vessel at a high temperature for a short time. In the reaction, a fatty acid molecule and an alcohol molecule are joined, with the release of a water molecule. The derivatives can be quickly and easily recovered, quantitatively, from the reaction medium.
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5,5'-Dithiobis(2-nitrobenzoic acid) (Ellmans reagent, DTNB), Molecular Biology Grade
Supplier: G-Biosciences
Ellman's reagent is a versatile, water-soluble compound for quantifying free sulfhydryl groups in solution. It reacts with a free sulfhydryl group to yield a mixed disulfide and 2-nitro-5-thiobenzoic acid (NTB), a measurable yellow colored product at 412nm.
Ellman's reagent is very useful as a free sulfhydryl assay reagent due to its high specificity for -SH groups at neutral pH, high molar extinction coefficient and short reaction time.
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trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate, Sigma-Aldrich®
Supplier: Merck
trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate, Sigma-Aldrich®
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Citric acid monohydrate, white crystalline powder
Supplier: MP Biomedicals
Citric acid acts as an iron chelator. It can support cholesterol/sterol, ubiquinone and isoprenoid biosynthesis in cell culture applications. In animals, citric acid improves the utilization of nutritional calcium. It is a useful buffer component.
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, LiChrosolv® for liquid chromatography, Supelco®
Supplier: Merck
, LiChrosolv® for liquid chromatography, Supelco®
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J.T.Baker® BAKERBOND®, Ion Exchange Chromatography Resin, PolyABx Multimode
Supplier: Avantor
The J.T.Baker® BAKERBOND® PolyABx multimode ion exchange (IEX) chromatography resin functions as a weak cation exchange resin with improved selectivity for superior separation in process chromatography applications.
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Hafnium standard solution, 1,000 mg/L Hf in 5% hydrofluoric acid standard for AAS
Supplier: Thermo Fisher Scientific
Hafnium Standard, 1000 mg/L, Hafnium, Matrix: 5% HF, Application: AAS standards
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Fuchsin (acid), powder C.I. 42685
Supplier: MP Biomedicals
Acid fuchsin is one of the dyes used in Masson′s trichome stain where it is used to distinguish muscle from collagen.
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Trichloroacetic acid glacial Ph. Eur.
Supplier: VWR Chemicals
Trichloroacetic acid glacial Ph. Eur.
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1-Hexanesulphonic acid sodium salt, white flakes
Supplier: MP Biomedicals
Sodium hexanesulfonate is a low molecular weight alkylsulfonate that is used as an ion pairing reagent for HPLC and as an anionic surfactant. The anionic sulfonate counterion permits the separation and resolution of positively charged analytes. Because of its low molecular weight, it will not form micelles in solution and therefore has no CMC value.
For ion-pair chromatography. Sodium hexanesulfonate is utilized in the analysis of small organic compounds, and pharmaceutical products and metabolites by such techniques as HPLC.
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Chromotropic acid disodium salt dihydrate 98%
Supplier: Thermo Fisher Scientific
Chromotropic acid disodium salt dihydrate 98%
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Zirconium standard solution, 1000 mg/L Zr in 5% hydrofluoric acid standard for AAS
Supplier: Thermo Fisher Scientific
Zirconium Standard, 1000 mg/L, Zirconium, Matrix: 5% HF, Application: AAS standards
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L(+)-Glutamic acid, Millipore®
Supplier: Merck
Soluble in water and mineral acids; insoluble in organic solvents. In aqueous solutions forms pyrrolidonecarboxylic acid slowly at room temperature, more rapidly at 100 °C.
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Acetonitrile with 0,1% (v/v) formic acid, CHROMASOLV™ LC-MS Ultra LabReady™, Solvent Blend tested for UHPLC-MS, Riedel-de Haën™
Supplier: Honeywell Chemicals
Acetonitrile with 0,1% (v/v) formic acid, CHROMASOLV™ LC-MS Ultra LabReady™, Solvent Blend tested for UHPLC-MS, Riedel-de Haën™
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J.T.Baker® BAKERBOND spe™ Propyl Sulfonic Acid, SPE Columns
Supplier: Avantor
BAKERBOND spe™ columns are disposable PP columns pre-packed with high capacity sorbents contained between two 20 µm PE frits.
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Sodium L(+)-ascorbate ≥99.0%, powder USP
Supplier: Spectrum Chemical
Sodium Ascorbate, Powder, USP is used to prevent or treat low levels of vitamin C in people who do not get enough of the vitamin from their diets. All Spectrum Chemical USP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities
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Sorbic acid ≥99%, yellow crystalline powder
Supplier: MP Biomedicals
Sorbic acid (2,4-hexadienoic acid) is a straight chain unsaturated fatty acid. It is an antimicrobial agent. The antimicrobial action of sorbic acid is due to its inhibitory influence on various enzymes in the microbial cell such as enzymes involved in carbohydrate metabolism such as enolase and lactate dehydrogenase, enzymes of citric acid cycles.
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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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Hexachloroplatinic(IV) acid hexahydrate Pt ≥ 37.5% ≥99.95% (metals basis), Premion® low nitrate
Supplier: Thermo Fisher Scientific
Dihydrogen hexachloroplatinate(IV) hexahydrate is used for the determination of potassium. It is also used for the purification of platinum by treating it with ammonium chloride flowed by heating of ammonium hexachloroplatinate with hydrogen yields elemental platinum. It also finds application in catalysis, electroplating, photography, platinum mirrors, printing for etching of zinc, producing fine color in glass and porcelain, indelible ink and microscopy. It is a precursor for the preparation of other platinum catalysts.