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CAS, the global leader in chemical information, and a division of the American Chemical Society, provides the most comprehensive databases of disclosed research in chemistry and related sciences, including the world's largest collection of substance information, the CAS REGISTRYSM. CAS makes this information available to researchers through SciFinder and STN, the best search and retrieval tools for scientists and information professionals. Colors of Chemistry - GreenMetallic-green is most frequently displayed by beetles, but other metallic colors are also observed - blue, red, gold, silver, and purple. A beetle's body is a thick cuticle comprised of multiple laminated layers of thin-film chitin with sometimes a crystal lattice microstructure that refract and polarize light-waves. Largest Collection of Proton NMR Spectra Now Available in SciFinderScientists worldwide can now access more than 23.8 million predicted proton NMR spectra in SciFinder, CAS' leading research and discovery tool and the authoritative source of information on more than 41 million chemical substances. These proton NMR spectra augment the 1.9 billion predicted and experimental properties and data tags already available in SciFinder. Updated 1/30/2009 4:43:04 PM
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