Sigma-Aldrich Corp now offers its Aldrich brand handbook of fine chemicals and laboratory equipment. With a new easy-to-read, two-column format, the handbook features more than 34,000 products, including 2,500 new listings and more than 20,000 chemical structures and linear formulas. Also included in the product listings are updated application notes, literature cautions, and cross-reference indices and tables.

Sigma-Aldrich Corp
(800) 325-5052; www.sigma-aldrich.com