1341 Results for: "Diethylene+glycol"

Supplier: VARIAN

PBA is a unique sorbent consisting of a phenylboronic acid covalently linked to a silica gel surface. Covalent processes result in a higher retention to the sorbent surface than other mechanisms, resulting in superior clean-up. The boronate group has a high specificity for cis-diol containing compounds such as catechols, nucleic acids, low molecular weight proteins and carbohydrates.

Supplier: Thermo Fisher Scientific

The Nalgene™ multi-tiered portfolio provides bioproduction facilities with a variety of high quality, sterile storage and transport solutions. Choose the appropriate product necessary to suit any application, through the step-down process and into the cleanroom.

Supplier: VWR Chemicals

The level of volatile organic solvents in pharmaceutical raw materials or finished product is defined and monitored. Residual solvents are classified according to their risk assessment classes. A selection of residual solvent standards is now available from Avantor.

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

Dextran is a high molecular weight polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(1-->6) linkages. The remaining a(1-->3) linkages account for the branching of dextran. Dextran has long and hydrophilic spacer arms that improves the performance of immobilized proteins acting on macromolecules.

Supplier: Thermo Fisher Scientific

These columns utilise a unique silica-based, mixed-mode stationary phase that combines both reversed phase (RP) and hydrophilic interaction liquid chromatography (HILIC) properties. The column's functional group features a hydrophobic alkyl chain and hydrophilic diol functionality. This combination allows both hydrophobic interaction and hydrophilic interaction to be utilised to optimise separations.

Supplier: VWR Collection

These data logging thermometers with Ethernet offer an easy and secure way to connect your smartphone, tablet or personal computer remotely with your water baths, refrigerators, freezers and biological/pharmaceutical lab equipment.

Supplier: VWR Collection

VWR® recirculating chillers are ideal for use with rotary evaporators, as they ensure constant, reproducible cooling conditions and avoid wasting tap water thereby increasing cost savings. Designed to be user friendly, the units have an easily accessible filling port on top of the unit and a drain tap at the back. The chillers have a stainless steel reservoir, operate using R134 refrigerant and can be used in the permitted ambient temperature range of 15 to 32 °C.

Supplier: MP Biomedicals

Tris is an established basimetric standard and buffer used in biochemistry and molecular biology.

Supplier: MP Biomedicals

Dextran is a high molecular weight polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(1-->6) linkages. Dextrans with molecular weights greater than 10,000 behave as if they are highly branched. As the molecular weight increases, dextran molecules attain greater symmetry.

Supplier: Thermo Fisher Scientific

Cross linkers are used for the identification of near-neighbour protein relationships and ligand-receptor interactions. Homobifunctional, amine-reactive NHS esters or imidates, and heterobifunctional, amine-reactive, photoactivatable phenyl azides are the most commonly used crosslinkers for these applications.

Supplier: Thermo Fisher Scientific

Carboxyl groups, in the form of carboxy termini, aspartate residues or glutamate residues, can be targeted for biotin labeling using amine-derivatised biotin molecules. This reaction is mediated by a class of crosslinkers known as carbodiimides and results in the formation of an amide bond. The reaction with EDC, the most common carbodiimide crosslinker, is generally performed in an MES buffer at pH 4,5 to 5 and requires just minutes to complete.

Supplier: MP Biomedicals

Amphotericin B is a polyene antifungal antibiotic from Streptomyces. It has an affinity for sterols, primarily ergosterols, of fungal cell membranes. It forms channels in the membranes, causing small molecules to leak out which contributes to cell death.

Supplier: Thermo Fisher Scientific

DyLight™ PEGylated dyes display absorption spectra ranging from 550 nm to 783 nm. These reagents fluoresce over a broad pH range, are more intense than Alexa Fluor® or Cy® dyes in many applications and match the output wavelengths of common fluorescence instrumentation. Additionally, the water solubility of the DyLight™ reagents allows a high dye-to-protein ratio without precipitation during conjugation.

Supplier: MP Biomedicals

Trimethoprim is an antibacterial agent; a specific inhibitor of formylation; a dihydrofolate reductase inhibitor.
Trimethoprim is primarily used as an antibacterial agent. It has dihydrofolate reductase inhibitor activity with selectivity for the prokaryote enzyme. It is used to treat urinary tract infections, mild acute prostatitis, recurrent cystitis, asymptomatic bacteriuria during pregnancy and respiratory tract infections.
The combination of trimethoprim and sulfamethoxazole interferes with the cellular metabolism of folic acid in the bacterial cell by blocking the biosynthesis of nucleotides. Trimethoprim binds to dihydrofolate reductase and inhibits the reduction of dihydrofolic acid (DHF) to tetrahydrofolic acid (THF). THF is an essential precursor in the thymidine synthesis pathway and interference with this pathway inhibits bacterial DNA synthesis.

Supplier: JULABO GmbH

Compact, ergonomically designed chillers which have integrated stainless steel tanks with large volumes. Models can be either air or water cooled. Applications include use with rotary evaporators, autoclaves, reaction vessels and for routine laboratory cooling. All units have an LED temperature display for actual/set point integrated into a splash-proof keypad and recessed grips for easy relocation integrated in the housing. A hinged tray serves as a compartment for the operating manual and other documents. The removable venting grid allows for easy cleaning of the condenser. Venting slots are located on the front and back, allowing units to be placed directly next to each other. Models FL2503 to FLW11006 have an early warning function with sensor monitoring to signal if the condenser is dirty, and online diagnostics with 'BlackBox' function.

Supplier: MP Biomedicals

Protein kinase C inhibitor (IC50 = 50-200 µM depending on assay conditions in MCF-7 cells or IC50 = 100 µM in rat brain). The PKC inhibition is also dependent on the phosopholipid concentration. Also inhibits both calmodulin-dependent and calmodulin-independent Ca2+-, Mg2+-ATPase. Tamoxifen is a selective estrogen response modifier (SERM), anti-angiogenetic factor. It is a prodrug that is metabolized to active metabolites 4-hydroxytamoxifen (4-OHT) and endoxifen by cytochrome P450 isoforms CYP2D6 and CYP3A4. In breast cancer, the gene repressor activity of tamoxifen against ERBB2 is dependent upon PAX2. Blocks estradiol-stimulated VEGF production in breast tumor cells.
Tamoxifen has been used to facilitate the recombination of ect2flox allele in mouse organs. It has also been used to study its effect on lipopolysaccharide (LPS)-induced microglial activation
Tamoxifen is a Protein kinase C inhibitor. It induces apoptosis in human malignant glioma cell lines. Tamoxifen and its metabolite 4-hydroxytamoxifen are selective estrogen response modifiers (SERMs) that act as estrogen antagonists in mammary gland. Blocks estradiol-stimulated VEGF production in breast tumor cells.

Supplier: MP Biomedicals

CERTIFIED GRADE. 1 * 1 L

Supplier: Honeywell Chemicals

2-BUTOXYETHANOL, 99+%, SPECTROPHOTOMETRI C GRADE 1 * 2 L

Supplier: Alla France

REFRACTOMETER 4 SC 1,100-1,400 0,001G/ML 1 * 1 items

Supplier: MP Biomedicals

Trypan Blue is a blue acid dye with a strong affinity for cellulose containing substrates such as cotton; less affinity for proteinaceous materials. Trypan blue solution may be used in trypan blue based cytotoxicity and proliferation assays.
Trypan Blue is used as a vital dye which is especially important because it is taken up by the reticuloendothelial system.