Showing 1-30 of 32 results for "94-81-5"
Sulfur Dioxide in Beer
Spectrophotometric determination of Sulfur Dioxide (SO2) in Beer with Elimann's reagent. Analytical method and sample preparation for Spectroquant® Sulfite Test.
Pharmaceuticals, Illicit Drugs & Alcohol Standards
Browse for a broad spectrum of certified reference materials for various pharmaceuticals, illicit drugs and diagnostic biomarkers for your laboratory testing requirements.
Corning
Corning® brand glass and plastic labware, filtration membranes, cell culture supplies, and equipment for life sciences.
Brand
Brand® GmbH and BrandTech® glassware and plasticware, lab storage solutions, bottle-top dispensers, pipettes and pipette tips, cuvettes, and cell culture and PCR consumables for laboratories.
Improved Recoveries and Lower Background for GC/MS/MS and LC/MS/MS Analysis of Pesticides in Green Tea
A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.
Amino Acids, Resins & Reagents for Peptide Synthesis
We offer an extensive range of amino acids, resins, and reagents of unparalleled quality, including Novabiochem®, for peptide synthesis, high-throughput organic chemistry, labeling peptides, and custom manufactured products.
Enzyme-Linked Immunosorbent Assay (ELISA) Kits
Enzyme-linked immunosorbent assay (ELISA) kits, reagents, and resources that provide ultrasensitive biomarker detection.
Analysis of Pesticide Residues in Cannabis Using QuEChERS Extraction and Cleanup Followed by GC/MS/MS Analysis
Compared to conventional PSA/C18/GCB cleanup, cannabis extracts cleaned with the Supel QuE Verde mixture showed lower GC/MS background, and better recoveries for many pesticides.
Flow-Modulation Comprehensive 2D GC/MS for the Determination of Allergens in Fragrances
The proposed method appears to be reliable and sensitive for the determination of allergens in perfumes, following the SCCNFP Opinion.
Stable Isotopes
ISOTEC® Stable Isotopes are stable isotope compounds, ranging from gases to complex molecules, that are useful for tracer studies in proteomics and metabolomics, agents for MRI / MRS, and in a wide range of other biomedical applications.
Cinchona Alkaloids
Asymmetric phase-transfer catalysis (PTC) has been recognized as a “green” alternative to many homogeneous synthetic organic transformations, and has found widespread application. Synthetically modified cinchona alkaloids are typical chiral organocatalysts used in asymmetric PTC.
Chromatofocusing: Principles and Methods
This page covers the principles and methods of chromatofocusing, a chromatography technique that separates proteins according to differences in their isoelectric point (pI).
Contact Us
Please contact your local representative for additional help with your order, our products, and product selection.
Sample Management: Storage
Essential lab storage solutions for lab management, sample traceability, and enhanced productivity including freezer and cryogenic boxes, glass and plastic tubes and bottles, and sealing films and foils.
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.
Chloride Channels
We offer many products related to chloride channels for your research needs.
HPLC Columns & Accessories
Our wide selection of HPLC columns for small and large molecule analysis allows you to enhance the separation process in terms of retention, resolution, selectivity, and analysis time, all while reducing the time for method development.
Viable but Nonculturable Bacteria
The expression “viable but nonculturable” (VNC) bacteria, describes cells that cannot normally be cultured; however, a better explanation of the status of these bacteria would be “not immediately culturable”.
Protocol Guide: XTT Assay for Cell Viability and Proliferation
XTT assay protocol for measuring cell viability, proliferation, activation and cytotoxicity. Instructions for XTT reagent preparation and examples of applications.
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.
Cross-CladeCD8+ T-Cell Responses with a Preference for the Predominant Circulating Clade
The genetic diversity of the human immunodeficiency virus (HIV) represents a major impediment towards a successful vaccine development. For example, the amino acid sequences of the 9 clades representing different phylogenetic groups of the HIV M sequences can differ by...
α2-Adrenoceptors
α2-Adrenoceptors
Excitatory Amino Acid Transporters
Sigma-Aldrich offers many products related to excitatory amino acid transporters for your research needs.
Autophagy Mitophagy in Tumor Cell Survival Death
Autophagy is a highly regulated process that is involved in cell growth, development, and death. In autophagy cells destroy their own cytoplasmic components in a very systematic manner and recycle them.
TRC Library Citations
TRC 1.5 human and mouse shRNA libraries
NF-κB and Inflammation
Chronic inflammation is an underlying factor in the development and progression of many of the chronic diseases of aging, such as arthritis, atherosclerosis, diabetes, and cancer.
Thermoelectric Performance of Perovskite-type Oxide Materials
The prevailing strategies for heat and electric-power production that rely on fossil and fission fuels are having a negative impact on the environment and on our living conditions.
Graphene and Other 2D Crystals for Rechargeable Batteries
Advanced technologies for energy conversion and storage are widely sought after for their potential to improve consumer and electronic device performance as well as for the prospect of reducing the societal and environmental impact of energy generation.
Protocols for the Fmoc SPPS of Cysteine-containing Peptides
Overcome challenges in synthesis and disulfide bond formation with protocols for Fmoc solid-phase peptide synthesis of peptides with cysteine and methionine.
Synthesis and Biomedical Applications of Polyamino Acids
Synthesis and Biomedical Applications of Polyamino Acids

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