Chem Sources Online includes the products of more than 8,000 chemical firms spanning 135 countries. The Chemical Section lists over 250,000 chemical compounds. More than 150,000 of these chemicals currently have CAS Registry Numbers and over 60,000 have formulas. The Trade Name and Classified Sections lists over 25,000 Chemical Trade names. The Company Directory gives all pertinent contact data necessary for making direct inquiries to each chemical firm.