90-98-2

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Two metabolic pathways exist for the biosynthesis of isopentenyl pyrophosphate and dimethylallyl pyrophosphate: The mevalonate pathway, predominantly used by plants and in a few insect species. The non-mevalonate pathway or methyl D-erythritol 4-phosphate (MEP) pathway, which occurs in plant chloroplasts

Flavors and Fragrances New Product Offerings

As a leading global supplier of new flavor and fragrance ingredients, we are dedicated to providing you with high-quality aroma chemicals comprising of certified food grade, IFRA, natural, kosher, and halal ingredients.

Coupling Reagents & Nucleosides

Our portfolio of building blocks, coupling reagents, and nucleosides provides a useful starting point for your oligo or nucleoside analog synthesis needs.

Jørgensen’s Organocatalysts

Professor Karl Anker Jørgensen and his group have developed ethers which serve as excellent chiral organocatalysts in the direct asymmetric α-functionalization of aldehydes.

Applications of Percoll In Blood Cells

Data was compiled to assist the researcher in selecting references most likely to contain relevant information regarding use of Percoll for a particular cell or tissue type.

Mass Spectrometry of Glycans

The development of modern mass spectrometry (MS) equipment with high resolution and mass accuracy has led to its use in analyzing glycans for both profiling and structural studies.

Protein Labeling & Modification

Protein labeling applications using enzyme-protein labeling, fluorescent protein labeling, and targeted protein degradation technologies.

Transmittance to Absorbance Table

Transmittance to absorbance table for fast conversion. Use this chart as a handy reference in the lab, classroom or field. The online transmittance chart is available to download and share.

DuPhos and BPE Ligands

Asymmetric hydrogenation reactions represent the ideal process for the commercial manufacture of single-enantiomer compounds, because of the ease by which these robust procedures can be scaled up and because of the low levels of byproducts generated in these asymmetric hydrogenations.

Determination of Tramadol in Urine using LC-MS/MS

This article presents an LC-MS/MS method for the determination of tramadol in urine samples using reversed-phase LC-MS/MS aided by isotope internal standards.

Universal ProbeLibrary System Performance Data

Design Intron-Spanning Assays that Work the First Time

Determination of Ethyl Glucuronide and Ethyl Sulfate in Urine using LC-MS/MS

This study is aimed at developing and validating an LC-ESI-ion trap-MS/MS method for identification and quantification of ethyl glucuronide (EtG) and ethyl sulfate (EtS) as ethanol biomarkers for urine analysis.

Analysis of Pesticides in Turmeric Powder by LC/MS/MS and GC/MS/MS after Cleanup with Dual-Layer SPE Cartridge

Pesticide residue testing of turmeric and other (dried) spices is challenging due to their complex compositions and high matrix. An efficient SPE clean-up can be achieved by a new Dual-layer cartridge.

Clinical Application of SPME: Analysis of VOCs in Exhaled Breath as Cancer Biomarkers

This report demonstrates the potential of solid phase microextraction as a clinical research tool for the extraction of VOCs associated with lung cancer from human breath.

384- vs. 96-Well Multiplex Analysis of Low-Level Cytokines | MILLIPLEX^® Assays

High sensitivity multiplex panels allow researchers to detect low-level cytokines and study multiple cytokines at once to dive deeper into low-level inflammation processes. See a performance comparison of the 384-well assay and the 96-well assay formats for the MILLIPLEX® Human

Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler

The unique sampler design ensures that both the vapor phase and particulate isocyanates are captured and derivatized during sampling.

Organic Reaction Toolbox

An organic reaction toolbox provides structure-activity relationships for unique chemical reactions to optimally design and control small molecule synthesis.

Recycling Micro-Assay of β-NAD and β-NADH

Objective: To standardize a procedure for the recycling micro-assay of β-NAD and β-NADH

Applications of Percoll in Other Cell Types

The table was compiled to assist the researcher in selecting references most likely to contain relevant information regarding use of Percoll in various cell types.

Development of Organic Semiconductors from Highly Ordered Oligo and Polythiophenes

The soaring global demand for energy, coupled with the limited supply of fossil fuels, has increased the need for renewable, low-cost energy sources. Organic electronics have shown great promise for applications in lighting, power, and circuitry, with rapidly improving performance

Whole Cell Lysis Reagents & Enhancers

Protein extraction kits, cell lysis buffers, and reagents for solubilizing proteins from bacteria, yeast, and insect cultures, as well as plant and mammalian cell cultures and tissue samples.

Purification or Removal of Albumin and IgG

This page shows how to purify or remove albumin and IgG with Albumin & IgG Depletion Sepharose High Performance from Cytiva.

Organic Semiconductor Laser Materials

Analysis of Tetrahydrocannabinol (THC) and Carboxytetrahydrocannabinol (THCCOOH) in Surface Waters by SPME and GC/MS

Methods for Enhancing Lentiviral Transduction Efficiency

An experiment to directly compare three methods of lentiviral transduction of Jurkat cells was conducted in order to determine the method that yields the greatest transduction efficiency.

Sample Preparation in Ion Exchange Chromatography

This page clarifies sample preparation, buffer exchange and desalting, removal of lipoproteins, phenol red, and low molecular weight contaminants in Ion exchange chromatography.

Two Distinct Sample Prep Approaches to Overcome Matrix Effect in LC/MS of Serum or Plasma Samples

This article highlights the impact that sample matrix effects can have on LC/MS response and discusses two novel approaches to reduce it.

Cultrex^® 3-D Culture Matrix™ Laminin I Protocol

3-D Culture Matrix™ Mouse Laminin I may be used as a gel or as a media additive to study cellular growth and differentiation in three dimensions in vitro.

Lipoprotein Function

Learn about the five main classes of lipoproteins: chylomicrons, very low density lipoproteins (VLDL), intermediate density lipoproteins (IDL), low density lipoproteins (LDL) and lipoprotein(a), and high density lipoproteins.

Absolute Quantification of Serum Proteome

Absolute Quantification (Protein-AQUA™™) is a targeted quantitative proteomics technique that exhibits robust efficacy and is being increasingly utilized for a wide variety of quantitative proteomics studies.

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