5666 Results for: "Kwas+ortofosforowy(V)"

Supplier: SPIRING ENTERPRISES

Molecular model of oleic acid (C₁₈H₃₄O₂) – or unsaturated fat.

Supplier: Avantor

BAKERBOND spe™ columns are disposable PP columns pre-packed with high capacity sorbents contained between two 20 µm PE frits.

Supplier: VWR Chemicals

HEPES is a general purpose buffer available for biological research.

Supplier: Molekula

3,4-Dimethoxybenzoic acid

Supplier: VWR Chemicals

, HiPerSolv CHROMANORM® for LC-MS

Supplier: MP Biomedicals

FOA is a derivative of a pyrimidine precursor and is selectively toxic to yeast cells which synthesize orotidine-5’-phosphate decarboxylase. FOA has been used in a positive selection for uracil-requiring mutants(in the presence of large numbers of wild-type cells) lacking OMPdecase or OPRTase activities. This results in efficient strains for effective transformation systems.

Supplier: MP Biomedicals

CAPS is a zwitterionic biological buffer which has minimal reactivity with enzymes or proteins and minimal salt effects. CAPS buffer is widely used in Western and immunoblotting experiments as well as protein sequencing and identification. The high pH of this buffer makes it useful for the transfer of proteins with a pI > 8,5.

Supplier: MP Biomedicals

L-Ascorbic Acid is used as an Antimicrobial and Antioxidant in foodstuffs. Reductant for the isolation of chloroplasts. It has an effect on the nonspecific immune system. Preserves nitric oxide (NO) which may help prevent endothelial dysfunction. It also helps prevent and reverse the oxidative damage done to proteins and lipids as a result of cigarette smoke.

Supplier: MP Biomedicals

Sodium 1-heptanesulfonate is a commonly used ion pairing reagent for HPLC, including analyses of peptides and proteins. It has also been used in high performance capillary electrophoresis analysis of peptides.

Supplier: Hach

Gallic acid solution for conductivity testing. Used to neutralise hydroxide ion interference.

Supplier: Thermo Fisher Scientific

(1S)-(+)-Camphor-10-sulphonic acid 99%

Supplier: SPIRING ENTERPRISES

Molecular model of stearic acid (C₁₈H₃₆O₂) – or saturated fat.

Supplier: MP Biomedicals

Chloroplatinic acid is used in potassium determination, purification of platinum and in catalysis.

Supplier: VWR Chemicals

Animal-free amino acid. Polar. Acidic.

Supplier: VWR Chemicals

, HiPerSolv CHROMANORM® for LC-MS

Supplier: VWR Chemicals

These standard supplements can be used with several culture media to prepare the complete culture media for your specific purpose. Most of these supplements are available as freeze-dried in vials and this ensures.

Supplier: Merck

LiChrosolv® hypergrade is accurately tested for LC-MS suitability, meeting all the requirements of modern LC-MS ionisation methods (ESI / APCI - positive and negative mode).

Supplier: Merck

LiChrosolv® hypergrade is accurately tested for LC-MS suitability, meeting all the requirements of modern LC-MS ionisation methods (ESI / APCI - positive and negative mode).

Supplier: VWR Chemicals

L(+)-Lactic acid 90% ≥90% Ph. Eur.

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.

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.

Supplier: VWR Chemicals

, HiPerSolv CHROMANORM® for LC-MS

Supplier: MP Biomedicals

Indole-3-Propionic Acid is used as reactant for preparation of fluorescent analogues of strigolactones,anti-tumor agents,melanocortin receptors ligands, Immunosuppressive agents, Iinhibitors of hepatitis C virus, Histamine H4 receptor agonists, NR2B/NMDA receptor antagonists, CB1 Antagonist for the treatment of obesity, Antibacterial agents, Inhibitor of TGF-β receptor binding.

Supplier: LGC Standards PROMOCHEM

3,4-Dimethoxybenzoic acid

Supplier: Thermo Fisher Scientific

(1S)-(+)-Camphor-10-sulphonic acid, (max. 2% H₂O) 98+% (dry weight)

Supplier: Merck

(1S)-(+)-Camphor-10-sulphonic acid, Sigma-Aldrich®

Supplier: Honeywell Chemicals

EGTA (ethylene glycol bis(2-aminoethyl ether)-N,N,N',N'-tetraacetic acid) ≥98.0% (by titrimetric analysis) for complexometry, Fluka™

Supplier: Merck

trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate, Sigma-Aldrich®

Supplier: Thermo Fisher Scientific

β-(N-Morpholino)ethanesulphonic acid (MES) monohydrate ≥98.5% (dry basis), Ultrapure

Supplier: Merck

trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate, Sigma-Aldrich®