NIST Chemistry WebBook (US National Institute for Standards and Technology)
Atomic Reference data for Electronic Structure Calculations (US National Institute for Standards and Technology)
NDRL/NIST Solution Kinetics Database on the Web (US National Institute for Standards and Technology)
IUPAC-NIST Solubility Database (Data compiled and evaluated by the International Union of Pure and Applied Chemistry)
The Physical Properties Database (PHYSPROP) (Syracuse Research Corporation)
BindingDB; The Binding Database (University of Maryland Biotechnology Institute)
SOLV-DB (Solvents data from the National Center for Manufacturing Sciences)
Infotherm Thermophysical Properties Database (FIZ Chemie Berlin)
Joint Expert Speciation System, JESS (Tool for tool for thermodynamic and kinetic modeling of chemical speciation in complex aqueous environments)
PDSP Ki Database
Chemical Kinetics Database on the Web (data on gas phase reactions from the US National Institute for Standards and Technology)
Spectral Database for Organic Compounds, SDBS (National Institute of Advanced Industrial Science and Technology (AIST), Japan)
NMRShift DB
SUGABASE, carbohydrate NMR database
Biological Magnetic Resonance Data Bank, BioMagResBank, BMRB
SPECARB, Raman spectra of carbohydates
EUROSPEC, International Spectroscopic Database
I-ChemiSt - Mass spec and NMR databases
Proton NMR Spectra of Xyloglucans [about]
American Mineralogist Crystal Structure Database
Biological Macromolecule Crystallization Database
Indiana University Molecular Structure Center
Crystallography Open Database, COD