1. , , Exploring QSAR—Hydrophobic, Electronic, and Steric Constants, ACS Professional Reference Book, Washington DC, 1995.
2. Fluorine in Medicinal Chemistry
3. MedChem. DB Version 06, Daylight Chemical Information Systems Inc., Aliso Viejo, CA 92656, USA; this database currently contains >60 000 entries, including some 14 000 experimental pKa values.
4. , , pKa Prediction for Organic Acids and Bases, Chapman and Hall, London, 1981.
5. For commercial suppliers see: MDL Available Chemicals Directory (ACD) database, Version 2006.2.