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Searching the Substance Descriptors Index

This search aid allows you to select one or more substance descriptors to add to your search query.

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Browse Option

1. Click the Expand icon to expand the list of codes under a particular section.

2. Click the Add button to add a code to the text box at the bottom of the page.

3. Click OK to transfer the selected item(s) to the search page.

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Find Option

1. Enter a word or phrase in the text field. Wildcards (* ?) are permitted. At least two characters must precede the wildcard. For example: do*

2. Click the Find button to go to a list of codes that contain the characters that you entered.

3. Click the Add button to select an item from the list. The selected item is added to the text box at the bottom of the page.

4. Click OK to transfer the selected item(s) to the Search page.

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Search Examples

• alkaloids
• alkaloids OR alloys
• carbohydrates
• poly*
• polysac*