Research Guides: Chemistry: Properties & Spectra

Chemical Properties

ChemSpider
ChemSpider is a free access service providing a structure centric community for chemists. Providing access to millions of chemical structures and integration to a multitude of other online services ChemSpider is the richest single source of structure-based chemistry information.
NIST Chemistry WebBook
From the site: The NIST Chemistry WebBook provides users with easy access to chemical and physical property data for chemical species through the internet.

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The data provided in the site are from collections maintained by the NIST Standard Reference Data Program and outside contributors. Data in the WebBook system are organized by chemical species. The WebBook system allows users to search for chemical species by various means. Once the desired species has been identified, the system will display data for the species.
Nucleic Acids Database
The Nucleic Acids Database, from Rutgers University. Searchable by many different criteria. Returns sequence, ID, and other structural information, with literature references
Proteopedia
Proteopedia is a wiki-based free access source for sharing protein and other structure data, allowing users to contribute and edit information by opening an account.
PubChem
Three linked databases within the National Center for Biotechnology Information Entrez information retrieval system. You can search these databases by names, synonyms, keywords: PubChem Substance; PubChem Compound; PubChem BioAssay.
Spectral Database for Organic Compounds SDBS
SDBS is an integrated spectral database system for organic compounds, which includes 6 different types of spectra under a directory of the compounds.