14895 Results for: "4-Bromo-2-chlorobenzenesulphonyl+chloride&pageNo=26&view=easy"

Supplier: Agilent

The ZORBAX® Bonus-RP column has a polar amide group embedded in a long alkyl chain. This novel bonding reduces interactions between basic compounds and the silica support, improving peak shape for the most difficult basic compounds. Peak shape and column lifetime are further improved by triple endcapping. In addition, diisopropyl side groups provide steric protection against acid hydrolysis for good lifetime and low pH. The Bonus-RP column provides an alternate selectivity to C18 and C8 alkyl bonded phases.

Supplier: Portwest

Waterproof trousers made of 100% polyester with PVC coating. Suitable for work or leisure.

Supplier: Mettler - Toledo

A cost-effective mobile precision balance for accurate and fast weighing tasks.

Supplier: MAPA

These anatomically designed gloves with quality flock lining provide good chemical resistance to hydrocarbon derivatives, alcohols, aromatic and chlorinated solvents.

Supplier: TOSOH Bioscience

SkillPak 1 and 5 ml columns are designed for fast method development, resin screening or sample concentration. Pre-packed with TOYOPEARL®, TSKgel® or Ca++Pure-HA™ process chromatography media, these columns offer superior separation of biomelocules, such as monoclonal antibodies, proteins and oligonucleotides. SkillPak 50 and 200 ml pre-packed columns are the best solution for seamless scale up of methods developed on SkillPak 1 and 5.

Supplier: Avantor

The Avantor® ACE® Excel® C18-AR phase utilises a specially developed ligand combining a C18 chain with integral phenyl functionality, thus combining the benefits of both C18 and phenyl characteristics into a single phase. This can be used for ‘standard’ C18 column separations, but is additionally recommended for separations that involve compounds containing aromatic functionality.

Supplier: Avantor

These Avantor® Hichrom C8 columns offer high performance in order to tackle the most challenging reversed-phase applications. The use of ultra pure silica, advanced bonding technology, superior column specification and comprehensive batch validation all contribute to the columns’ excellent reproducibility.

Supplier: VWR Collection

Routine inverted fluorescence microscopes for transmitted brightfield, phase contrast (optional for IT407 FL4 and IT407 FLD4 FLD) and fluorescence observations with IOS LWD W-Plan PH or U-Plan F objectives. Ideal for tissue culture research in clinical and biotechnology laboratories.

Supplier: Avantor

These syringe filters are specifically designed for chromatography sample preparation applications and optimised to provide the most consistent results with less extractables.

Supplier: VWR Chemicals

Refractive index Certified Reference Materials (CRMs) are ideal for verification and calibration of temperature controlled refractometers, with each CRM providing certified values for refractive index measurements at 20, 25 and 30 °C.

Supplier: RENTEX

Work jacket made from blended fabric, 65% polyester and 35% cotton, with Sanfor®.

Supplier: CHIRAL TECHNOLOGIES

These columns allow chromatographers to employ essentially any organic solvent as mobile phase to develop methods for the most challenging separations. These columns are available in a variety of particle sizes and offer great speed and column resolving power. Columns packed with 3 µm CSPs offer high speed separations and a reduction in analysis time and cost per sample. Columns, packed with 3 µm particles, may be used in conventional HPLC units without significant loss in performance, even with the smaller column dimensions.

Supplier: GILSON

Designed for performance and comfort, PIPETMAN® L comes in a comprehensive range of models, adapted to your needs in the lab. PIPETMAN L air-displacement pipettes cover a full volume range. Comfortable, precise, accurate, and reliable, use PIPETMAN L pipettes confidently in your applications.

Supplier: FRISTADS KANSAS

Durable trousers made of 65% polyester and 35% cotton.

Supplier: Roth Carl

VOLLSICHTBRILLE ULTRA-VISION 1ST 1 * 1 ST

Supplier: UVP ULTRA VIOLET PRODUCTS

Cabinet c-10e cabinet only - add 4w el lamp 1 * 1 items

Supplier: VWR Chemicals

These ISO 17025 and ISO 17034 certified general purpose viscosity standards provide certified kinematic viscosity, dynamic viscosity and density data across temperature ranges from 20 to 100 °C.

Supplier: VWR Collection

ND11 crimp neck vials are manufactured from 1st hydrolytic class borosilicate glass with flat bottom. They can be purchased with a variety of aluminium seal styles and septa materials.

Supplier: Spectrum Laboratories

Ready-to-use laboratory dialysis systems featuring proprietary Ultra-pure Biotech Cellulose Ester (CE) Membrane. Biotech Grade CE is a low protein-binding synthetic membrane available in 9 precise MWCO's with no heavy metal and sulfide contaminants. The cylindrical tubing geometry prevents sample dilution (associated with cassette-type devices) and provides open access for total volume retrieval by pipette. Only the Float-A-Lyzer® G2 assures a 95 to 98% sample recovery while maintaining 99% sample purity and <1% sample dilution. The leakproof screw-on cap with sealing o-ring provides easy access with included pipette for loading, in-process testing and sample retrieval, without the risk of needle punctures. The included floatation ring improves sample buoyancy and vertical orientation during dialysis. The sleek design allows multiple samples to be dialysed in the same reservoir.

Supplier: Biotium

PMA (propidium monoazide) dye is a DNA modifier invented by scientists at Biotium. It is a photo-reactive dye that binds to dsDNA with high affinity. Upon photolysis with visible light, PMA dye covalently attaches itself to dsDNA.

Supplier: Brady

PermaSleeve® PS Heat-Shrink Polyolefin (B-342) wire marking sleeves combine speed, ease of use, and permanence to create long-lasting, high-quality identification.

Supplier: ROBU GLASFILTER

VitraPOR® micro-filter candle blanks are ideal for integration into customised filter systems. Compact and chemically resistant, they provide reliable fine filtration in small volumes.

Supplier: Bioss

The cytochrome P450 proteins (CYPs) are monooxygenases that catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids, and other lipids. P450 enzymes are classified into subfamilies based on their sequence similarities. CYP26A1 is a major retinoic acid catabolic enzyme. CYP26A1 plays an important role in protecting tailbud tissues from inappropriate exposure to retinoic acid. CYP26A1 transcription is epigenetically regulated by nuclear retinoic acid receptor ∫2. Mutations in the gene encoding for CYP26A1 are associated with caudal agenesis and spina bifida, imperforate anus, agenesis of the caudal portions of the digestive and urogenital tracts, and malformed lumbosacral skeletal elements. CYP26A1 is upregulated in adenomatous polyposis coli mouse adenomas, human FAP adenomas, human sporadic colon carcinomas, and in the intestine of adenomatous polyposis coli (apcmcr) mutant zebrafish embryos.

Supplier: Brady

PermaSleeve® PS heat-shrink polyolefin (B-342) wire marking sleeves combine speed, ease of use, and permanence to create long-lasting, high-quality identification.

Supplier: Bioss

The cytochrome P450 proteins (CYPs) are monooxygenases that catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids, and other lipids. P450 enzymes are classified into subfamilies based on their sequence similarities. CYP26A1 is a major retinoic acid catabolic enzyme. CYP26A1 plays an important role in protecting tailbud tissues from inappropriate exposure to retinoic acid. CYP26A1 transcription is epigenetically regulated by nuclear retinoic acid receptor ∫2. Mutations in the gene encoding for CYP26A1 are associated with caudal agenesis and spina bifida, imperforate anus, agenesis of the caudal portions of the digestive and urogenital tracts, and malformed lumbosacral skeletal elements. CYP26A1 is upregulated in adenomatous polyposis coli mouse adenomas, human FAP adenomas, human sporadic colon carcinomas, and in the intestine of adenomatous polyposis coli (apcmcr) mutant zebrafish embryos.

Supplier: Brady

Create large 38,10 mm labels with edge-to-edge printing and a wide range of text sizes.

Supplier: VWR Collection

These leakproof, conical bottom centrifuge tubes prevent breakage and leakage during high speed centrifugation, and are made of non cytotoxic, medical grade resin that allows users to easily see sample volume and colour.

Supplier: VWR Chemicals

The tightening of regulatory requirements and the increasing demands of QA/QC methodology is becoming more important across all market sectors. The demand for standards to support testing methods continues to increase, and this growth applies to water determination according to Karl Fischer. Avantor now offers a complete range of Karl Fischer water standards as CRMs to calibrate and monitor equipment and check test results.

Supplier: Avantor

Avantor® ACE® Excel® C18-Amide is a uniquely designed stationary phase offering improved retention of polar compounds, enhanced phenolic resolution and alternative selectivity to C18 bonded columns. These stainless steel columns are available in a wide range of particle sizes and dimensions from capillary to preparative.

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö’s qualitative grades of filter paper are recommended for use in analytical methods which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance. These filter papers covers a wide range of laboratory applications, as liquids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing. Wet-strengthened grades contain a reinforcement agent that increases their resistance to rupture when wet, such as in vacuum filtration, and their resistance when filtering acidic solutions. High Purity hardened filter papers grades 1288 to 1291 are also produced from cellulose with an alpha content of nearly 100% resulting in an ash content of <0,1%.