National Center for Biotechnology Information (http://www.ncbi.nih.gov/)
The premier center in the United States for molecular biology databases, including PubMed. For amino sequence/protein structure, try searching the Protein database. The Nucleotide database is good for finding gene nucleotide sequence.
Protein Data Bank (http://www.rcsb.org/pdb/home/home.do)
The RCSB PDB provides a variety of tools and resources for studying the structures of biological macromolecules and their relationships to sequence, function, and disease. The RCSB is a member of the wwPDB whose mission is to ensure that the PDB archive remains an international resource with uniform data. This site offers tools for browsing, searching, and reporting that utilize the data resulting from ongoing efforts to create a more consistent and comprehensive archive.
Kirk-Othmer Encyclopedia of Chemical Technology 5th ed. NY: Wiley. Ref TP9 .K54 2004
Gmelin Handbuch der Anorganischen Chemie. Leipzig-Berlin, Verlag Chemie, g.j.b.h., 1924- QD151 G52 ORCA Storage
Merck Index: an encyclopedia of chemicals and drugs. 13th ed. 2001. Rahway, NJ: Merck. Ref RS356 M524
In addition, go to OneSearch catalog. Enter the following Knovel titles and you can search for your data electronically:
JANAF Thermochemical Tables 4th floor stacks QD511 N57 1998
TRC Thermodynamic Tables, Hydrocarbons. College Station, TX: Thermodynamics Research Center, Texas A&M University System, 1985- (QD305 H5 T44) 12 volumes, loose leaf
TRC Thermodynamic Tables, Non-Hydrocarbons. College Station,TX: Thermodynamics Research Center, Texas A&M University System, 2985- (QD305 H5 T45) 9 volumes, loose leaf
Also, look in OneSearch Catalog under Subject: Thermodynamics -- Tables
ChemSpider: RSC resource searchable by name, CAS RN, SMILES string, InChI key, chemical properties. Also contains name, synonym, experimental and predicted properties data