Look for weekly "CW Price Report" and annual "Buyer's Guide."
Finding prices and suppliers of chemicals
Finding prices for all but the most commonly-used chemicals is a challenge. Many suppliers require registration before they will give you a price quote. Note the currency; chemicals may be supplied from several countries.
Click "Explore Substances", enter the compound for which information is desired, and click "Search". Then click "Commercial Sources" under the results. This will display a list of commercial suppliers.