Take the power of the Sigma-Aldrich Web site to the next level with our new-generation, customizable Search Tools.

On this Page:

• Life Science and Biochemicals
• Chromatography & Analytical
• Materials Science, Chemical Synthesis and Lab Equipment

Life Science and Biochemicals
Name	Description
Ask an RNAi Expert	Fill out a simple form for answers to questions relevant to RNAi. An archive of questions/answers is available on-line for reference.
Antibiotic Explorer	The largest selection of research antibiotics commercially available; includes antibiotic and anti-neoplastic biochemicals.
Antibody Explorer	Comprehensive source for antibodies; includes search, browse, technical resources and product spotlights.
BioActive Nutrient Explorer	Groups bioactive compounds into structural families, and provides information about the bioactive compounds found in a particular plant, as well as which plants contain a specific bioactive compound.
Buffer Calculator	Calculates buffer solutions, including concentration calculations by Molarity or by Percentage, and includes relevant links to Sigma-Aldrich products.
Carcinogen Selector	The Carcinogen Selector gives researchers the ability to select carcinogens by the mouse organs that they promote cancer in.
Cell Culture Virtual Stockroom	Contains Cell Culture laboratory essential products grouped as if stored in a stockroom.
Cell Signaling Pathway Slides	Part of Sigma's growing offering in Cell Signaling and Neuroscience, these free slides may be downloaded for your personal use or educational presentations.
Cold Spring Harbor Protocols	Selected protocols brought to you by BioSupplyNet in an exclusive partnership with Sigma-Aldrich, with new protocols being featured each month.
DNA Calculator	After entering your Oligo information, click 'Calculate' to run.
Enzyme Explorer	Search by name, application, specificity or EC number. Also features detailed sites on metabolic pathways, protein kinases, protease specificity and inhibition, and glycoprotein analysis as well as new cell signaling, analytical and diagnostic enzymes and reagents.
Media Expert®	Comprehensive source of information on cell culture media components and provides information on formulation strategies.
Metabolic Pathways Chart	22nd edition of the IUBMB-Sigma-Nicholson Metabolic Pathways Chart contains updated pathways involved in ATP metabolism in the mitochondria and chloroplast.
MISSION™ shRNA Search	Locate shRNA clones for your specific gene of interest or for multiple target sets. View a detailed listing of experimental controls or current gene family sets.
PathFinder	Collection of interactive maps showing biological signaling pathways with related products.
PCR MasterMix Calculator	Amount of components needed to create your Polymerase Chain Reaction MasterMix.
Peptide Explorer	Peptide information, including an amino acids reference chart.
Peptide Calculator	View the molecular weight, amino acid composition profile, solubility values and much more for your desired peptide sequence.
Peptide Library Design	This tool enables you to design overlapping peptide fragment libraries for your native protein of interest.
Plant Tissue Culture Protocols	Media preparation & formulation, sterilization techniques, storage.
Plasmid Partner™	Asks a few simple questions in order to determine the best Plasmid application for the user's needs.
Protease Finder	Locate both the endo- and exoproteases needed for precision protein cleavage, utilizing cleavage specificity data from over 140 Sigma proteolytic enzymes, encompassing 73 different types of proteases.
Sigma-RBI eHandbook	Online version of the Sigma-RBI Handbook of Receptor Classification and Signal Transduction. Includes peer-reviewed entries.
Stain Expert™	Offers a broad range of stain recipes and procedures in the field of laboratory science.

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