e-EROS gives detailed information about 4,500 reagents and catalysts, with 200 new or updated articles added each year. Articles contain preparation details, physical property information, and commentary on the role the reagent plays in organic synthetic reactions.
We also have the Handbook of Reagents for Organic Synthesis, which are thematic collections of e-EROS articles:
Fieser and Fiesers' Reagents for Organic Synthesis
