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.

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.

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.

Universal ProbeLibrary System Performance Data

Design Intron-Spanning Assays that Work the First Time

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.

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.

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.

Solution & Vapor Deposition Precursors

Choose top-grade precursors for precise thin film synthesis. Enhance electronics, optics, solar, and coatings.

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

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

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.

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.

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.

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.

GPCR Markers for Cancer Research

Explore the role of some selected GPCR markers in cancer research development and treatment, including neurohormonal GPCRs, rhodopsin-like GPCRs, and more.

Sample Preparation for Affinity Chromatography in Specific Groups of Biomolecules

Whole Transcriptome Amplification of RNA from Low Cell-Number Samples

The efficacy of amplification of small quantities of total RNA with the Complete Whole Transcriptome Amplification Kit (WTA2) was examined in this study.

Sample Preparation for Chromatographic Purification

This page discusses various aspects of sample preparation for chromatographic purification.

Glycol Ethers Properties & Examples, Organic Solvents

Glycol ethers, with both an ether and alcohol functional group in the same molecule, are one of the most versatile classes of organic solvents.

Materials Design Concepts for Efficient Blue OLEDs: A Joint Theoretical and Experimental Study

2D MXenes Ink: Synthesis, Properties, and Their Precursors

Optimizing the synthesis of high-quality 2D MXene flakes for 3D ink printing is essential to such technological developments as printable and flexible electronics.

Self-Propagating Reactions Induced by Mechanical Alloying

An article concerning self-propagating reactions induced by mechanical alloying, presented by Sigma-Aldrich.com.

Metal Borohydrides as Hydrogen Storage Materials

An article about metal borohydrides as hydrogen storage materials

Absorbance to Transmittance Converter

Convert absorbance to transmittance values and vice versa.

Carcinogenesis and Epigenetics

Cancer research has revealed that the classical model of carcinogenesis, a three step process consisting of initiation, promotion, and progression, is not complete.

Degradable Poly(ethylene glycol) Hydrogels for 2D and 3D Cell Culture

Progress in biotechnology fields such as tissue engineering and drug delivery is accompanied by an increasing demand for diverse functional biomaterials. One class of biomaterials that has been the subject of intense research interest is hydrogels, because they closely mimic

Recent Developments on Hydrogen Release from Ammonia Borane

Record crude oil prices combined with public interest in energy security have resulted in increased attention to a potential transportation economy based on hydrogen fuel.

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