• AccessScience - the McGraw-Hill Encyclopedia of Science & Technology
• Aldrich Catalog Online
• Chemistry of the Elements (2nd ed.)
  
• CRC Handbook of Chemistry & Physics
• Hawley's Condensed Chemical Dictionary
  
• Kirk-Othmer Encyclopedia of Chemical Technology
• Merck Index
• The Laboratory Companion: A Practical Guide to Materials, Equipment, and Technique
  Kresge QD53 .C69 1997 (more info)

• Beilstein Crossfire (Beilstein Handbook of Organic Chemistry)
• Cambridge Structural Database system (CSD) - installation disks on reserve at Kresge, or preview the web version here
• Comprehensive Organic Chemistry, Sir Derek Barton, ed. (catalog record)
  Kresge Ref. QD245 .C65 1979
• Comprehensive Heterocyclic Chemistry, 3rd ed., Alan Katritzky, ed.
  Comprehensive Heterocyclic Chemistry, 1st  and 2nd eds., Alan Katritzky, ed.
  Kresge Ref. QD400 .C65 (together, the 1st & 2nd eds. review the field through 1995)
• Dictionary of Organic Compounds 6th ed. (catalog record)
  Kresge Ref. QD246 .D5 1996
  
  
• Patai's Chemistry of Functional Groups series, informally called the Patai series View all library volumes
  Also see: Patai's 1992 Guide to the Chemistry of Functional Groups Kresge Ref. QD251.2 .P34 1992
• Rodd's Chemistry of Carbon Compounds, 2nd ed. (catalog record)
  Kresge Ref. QD251 .R62
  
  
• March's Advanced Organic Chemistry: Reactions, Mechanisms, & Structure (6th ed.)
  Print copy: Kresge QD251.2 .M37 2007
  
• Advanced Organic Chemistry (Carey and Sundberg, eds.) 5th ed.
  Print copy: Kresge QD251.2 .C36 2007 (pts. A & B)
  Online: Part A, Structure and mechanisms | Part B, Reactions and synthesis

• Comprehensive Organic Synthesis (Barry Trost, ed.)
  Kresge Ref. QD262 .C535 1991
  
• Comprehensive Organic Functional Group Transformations II (Alan Katritzky, ed.)
  Also see COFGT I, covering the period from 1995-2005.
• e-EROS: Encyclopedia of Reagents for Organic Synthesis
• Fieser & Fieser's Reagents for Organic Synthesis (catalog record)
  Kresge Ref. QD262 .F5 (1967-present)
• Organic Syntheses
  (Print volumes, collective volumes and indices: Kresge Ref. QD262 .O72)
  
• Organic Reactions Kresge QD261 .O7 1942-present
• Science of Synthesis (Houben-Weyl Methods of Molecular Transformations)
• Theilheimer's Synthetic Methods of Organic Chemistry (catalog record)
  Kresge Ref. QD262 .S94 (1949-present)
  

• Cambridge Structural Database system (CSD) - installation disks on reserve at Kresge, or preview the web version here
• Dictionary of Inorganic Compounds (catalog record)
  Kresge Ref. QD148 .D54 1992
• Dictionary of Organometallic Compounds, 2nd ed. (catalog record)
  Kresge Ref.: QD411 .D53 1995
• Encyclopedia of Inorganic Chemistry, 2nd ed., R. Bruce King, ed.
• Comprehensive Coordination Chemistry II, McCleverty and Meyer, eds.
  
• Comprehensive Organometallic Chemistry III, Crabtree and Mingos, eds.
• Gmelin Crossfire (Gmelin Handbook of Inorganic Chemistry)
  
• Inorganic Syntheses (catalog record)
  Kresge QD151 .A115 (1939-present)

• Encyclopedia of Polymer Science & Technology (Mark's Encyclopedia)
• Kirk-Othmer Encyclopedia of Chemical Technology
• Polymer Handbook (Brandrup's Polymer Handbook, 4th ed.)
  (Print copy: Kresge Ref. QD388 .P65 1999, 3rd ed. in stacks)
• Seymour/Carraher's Polymer Chemistry (7th ed.)
  Kresge QD381 .S483 2008
• Wiley Database of Polymer Properties (based on Brandrup's Polymer Handbook)
  Comprehensive source of physical property data for polymers.
  

These sites match specific physical & chemical properties with the handbooks and databases where they can be found.

* Finding Thermodynamic & Physical Property Data (UT-Austin)
* Thermodex: Index to Printed Handbooks (UT-Austin)
* Physical Properties Source Index (PPSI) (ETH Zurich)
* Index to Physical, Chemical and Other Property Data (ASU)
* Chemical & Physical Property Information Resources (Duke)

SDBS Spectral Database

NIST Chemistry WebBook

Spectra & Spectral Data - An extensive list of vetted sources

Finding Chemical Spectra & Spectral Data - Another great annotated list from UT Austin

Spectra - A guide to sources from Indiana Univ.'s ChemInfo site

CRC Handbook of Laboratory Safety
Kresge Ref. QD51 .C73 2000

Hazardous Chemicals Desk Reference (6th ed.)

Material Safety Data Sheets (MSDS)
   * University of Vermont SIRI MSDS
   * Sigma-Aldrich Catalog (registration required)

Sax's Dangerous Properties of Industrial Chemicals

The Sigma-Aldrich library of chemical safety data
Kresge Ref. T55.3.H3 S54 1988  v.1-2