NTP Database Search Application

Page-Specific Help: You are currently viewing the NTP Search Home Page. To begin your search, enter a CAS number or part of a chemical name or synonym into the search box below. It may be helpful to enter only the key part of the chemical name. For example, if you are looking for "1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE", you may enter "quinoline" to find all matches containing the word "quinoline".

Check the box below the text field to limit the search results to only test agents that exactly match your search term. For example, entering 'Benzene' without checking the box will return a large number of results because many test agents have 'benzene' as part of their name. But checking the box and entering 'Benzene' will only return one result.

This search includes synonyms, but the search results will display the primary chemical name, the CAS number and the synonym name.

General Help: The menu at the top of the page has buttons for:

• Reload Page: Will reload the current page. If you want to send another user a link to this page, click Reload Page then copy the URL in your browser to send to the other user.
• Help: Clicking the help button will show and hide this context-sensitive help box.

Beneath the menu buttons is your Search History. As you use the application, each page you visit will be displayed in the Search History. Clicking on a page in the history will return you to that page and truncate the Search History back to that page. If the History gets too long, you can hide it by clicking 'Hide History'. To view it again, click 'Show History'. To reset and clear out the History completely, click 'Clear History'.

How To Bookmark This Page: First press the 'Reload' button in the menu at the top of the page. This will ensure that all necessary information is contained in the URL for this page. Then you may bookmark the page in your browser and return at any time in the future. Scroll down to view the rest of the current page.

Accessibility: If you need an alternative means of access to any information on this Web site, please contact us. Let us know the nature of your accessibility problem, the URL of the requested information, and your contact information.

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National Toxicology Program (NTP), within the U.S. Department of Health and Human Services, is an interagency program headquartered at the National Institutes of Health's National Institute of Environmental Health Sciences (NIEHS) located in Research Triangle Park, NC.