Chemical Suppliers - CHEMCATS - Find commercially available chemicals, pricing and supplier contact information

Benefit to you

The next time you have to order chemicals, you can quickly find the substances you need thanks to CHEMCATS®. You will find the following information (depending on the supplier):

  • Catalog name
  • Order number
  • Chemical and trade names
  • CAS Registry Number®
  • Chemical structure
  • Pricing terms
  • Supplier contact information:
    • Company name and address
    • Phone and fax number
    • E-mail
    • Web address
Note: If you are a supplier of commercially available chemicals and would like to have your information considered for inclusion in CHEMCATS, please e-mail us at or visit CHEMCATS Chemical Supplier Program. CAS reserves the right to review and approve all requests for inclusion in CHEMCATS.




Sample record from SciFinder®

chemcats sources




CHEMCATS (Chemical Catalogs Online), produced by CAS, is a catalog database containing information about commercially available chemicals and their worldwide suppliers. CHEMCATS contains:

  • More than 99 million commercially-available products
  • More than 970 chemical catalogs
  • More than 870 suppliers
  • More than 29 million unique CAS Registry Numbers

How do we count

CHEMCATS consists of commercially available products. Products listed by vendors as different catalog items may reflect various factors, such as purity, grade, or quantity.


Catalogs and chemical libraries from 2013 to present.

Update frequency

Updated at least two times per week with new and revised catalog information.


CAS products

You can use the following CAS products to search CHEMCATS:

CAS Content

CHEMCATS Assistance

For participation and fee information, contact
  800-753-4227 (North America)

  614-447-3700 (Worldwide)

For data submission, contact