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Over the past several years, Pd-catalyzed cross-coupling of silicon compounds has rapidly gained acceptance as a suitable alternative to more commonly known methods such as: Stille (Sn), Kumada (Mg), Suzuki (B), and Negishi (Zn) cross-couplings.

Thermal Transitions of Homopolymers: Glass Transition & Melting Point

Literature values for the glass transition temperature, (Tg), and melting temperature, (Tm), are given for the more common homopolymers.

Proline Derivatives and Analogs

Proline analogues are promising candidates for tuning the biological, pharmaceutical, or physicochemical properties of naturally occuring, as well as de novo designed, linear, and, cyclic peptides.

Genetically Modified Flavors

A discussion of biotechnology and genetically modified organisms (GMOs) in food labeling

QuEChERS Cleanup and Analysis of Veterinary Drugs in Milk by LC/MS/MS

Proline Derivatives and Analogs

Proline analogues are promising candidates for tuning the biological, pharmaceutical, or physicochemical properties of naturally occuring, as well as de novo designed, linear, and, cyclic peptides.

Polybrene® Technical Bulletin

Polybrene® is a well-known anti-heparin agent. Also known as 1,5-dimethyl-1,5-diazaundecamethylene polymethobromide and hexadimethrine bromide, this positively charged polymer produces non-specific red blood cell agglutination by neutralizing the red blood cell net negative charge.

Understanding Sweet Taste Perception

The powerful effect of the pleasurable sensation arising from sweet tasting foods has led to consumer demand and large-scale production of the caloric sweetening agents sucrose and fructose.

Custom siRNA Libraries & Panels

MISSION siRNA Libraries offer the most compelling siRNA collections for high-throughput screening by targeting genes of high therapeutic value as defined with input from major pharmaceutical companies.

Opioid Receptors

We offers many products related to opioid receptors for your research needs.

Spirocyclic Building Blocks for Scaffold Assembly

Spirocyclic modules containing four-membered rings are currently of growing interest to discovery chemists.

Fluorescein Isothiocyanate-Dextran

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran.

The Utility of Headspace Grade Solvents for the Analysis of Organic Volatile Impurities

Sepharose XL – for selected proteins that require very high binding capacity to increase productivity, easy scale-up

This page covers how and when to use Sepharose XL media for purification of proteins.

Dextran

Dextran is a 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. Conflicting data on the branch lengths implies that the average branch length is less than three

Single-Double Multi-walled Carbon Nanotubes

Find unique properties & applications of single (SWNTs) , double (DWNTs) & multi walled carbon nanotubes (MWCNTs).

Accelerating IAP-Based Protein Degrader Discovery with Novel Ligand Library

This product is a plate of 80 ligands against the E3 ligase IAP The ligands were designed by ComInnex using a computational approach. Linkers can be added to these ligands allowing attachment to target ligands to create bifunctional targeted protein

Vasopressin and Oxytocin Receptors

Sigma-Aldrich offers many products related to vasopressin and oxytocin receptors for your research needs.

The Endothelial Cell Transwell Migration and Invasion Assay

Cell culture protocol: the endothelial cell transwell migration and invasion assay used to study angiogenesis and cancer cell metastasis. Explore over 350 PromoCell products.

Periodic Table of the Elements

Download the Periodic Table of the Elements with names, atomic mass and number in printable .pdf and image format. Use the periodic table chart by element names in alphabetical order for quick research, reference and lab use.

Fluorescence Quenching Microscopy: Imaging Two-Dimensional Materials

Developed in the last several years, fluorescence quenching microscopy (FQM) has enabled rapid, inexpensive, and high-fidelity visualization of two-dimensional (2D) materials such as graphene-based sheets and MoS2.

Manufacturing, Characterization and Use of Single Walled Carbon Nanotubes

Carbon nanotubes are materials that possess remarkable properties and offer extraordinary possibilities.

Triphenoxazoles: A New Class of Fluorescent Photoconducting Liquid Crystalline Materials for Organic Electronic Applications

Here we introduce the Triphenoxazoles, a new class of organic electron donor-acceptor materials that can both be manipulated to change the electronic properties of the donor and acceptor with the consequent modulation of their HOMO/LUMO and properties, such as Stokes

Ellman's Sulfinamides

Ellman's sulfinamide is available in both enantiomeric and racemic forms for your research. This versatile and useful auxiliary has found extensive use both in academics and industry.

Dietary Terpenes

Terpenes comprise the largest and most diverse class of secondary metabolites; approximately 55,000 compounds have been identified to date.

Glutamate Receptors (Ion Channel Family)

We offers many products related to ion channel family glutamate receptors for your research needs.

Dynamic Nuclear Polarization

Dynamic Nuclear Polarization (DNP) is a phenomenon by which high spin polarization, typically derived from a bath of free radical electrons, is transferred to a nuclear spin bath, enhancing the difference between the nuclear energy levels and thereby producing dramatically

Potassium Channels

We offer many products related to potassium channels for your research needs.

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

Serotonin Synthesis and Metabolism

Serotonin (5-hydroxytryptamine) is principally found stored in three main cell types - i) serotonergic neurons in the CNS and in the intestinal myenteric plexus, ii) enterochromaffin cells in the mucosa of the gastrointestinal tract, and iii) in blood platelets. Metabolism

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