Landolt-Börnstein's Numerical Data and Functional Relationships in Science and Technology is a comprehensive collection of information covering fundamental properties of physics, chemistry, and technology. The Science Library has numerous volumes in this collection, but no longer maintains a subscription. The set can be found in the circulating book collection at QC 61 Z3. There are 2 online indexes:
1. Landolt-Börnstein Search from the University of Hamburg (Germany) provides an index to compounds. It can be searched by a combination of name, CAS registry number, formula, mass, or structure. It can also be browsed by organic name, formula, and CAS RN or inorganic formula and element system.
2. Springer also maintains general, organic, and inorganic indexes.
Note: Although these indexes link to the full text at the Springer Web site, the University at Albany does not subscribe to this service.