> For the complete documentation index, see [llms.txt](https://chembl.gitbook.io/surechembl/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://chembl.gitbook.io/surechembl/chemical-search/search-for-structure-in-document-section-s.md).

# Search for structure in document section(s)

When searching for a chemical structure against the full text of a patent, you may choose to have SureChEMBL only search particular portions of the document.

| Section           | Description                                                                                                                                                                                                                                                                                                                     |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| All               | All of the following four document elements are included in the search.                                                                                                                                                                                                                                                         |
| Title or Abstract | The document title and abstract provide a very short summary of the invention.                                                                                                                                                                                                                                                  |
| Claims            | The document claims point out and distinctly declare the subject matter which the applicant regards as the invention and define the scope of the patent protection                                                                                                                                                              |
| Description       | The document description provides a clear and concise explanation of known existing technologies related to the new invention as well as an explanation of how this invention could be applied to solve problems not addressed by the existing technologies; specific embodiments of the new technology are also usually given. |
| Images            | Some patents contain attachment files that may be images from which are extracted Mol files.                                                                                                                                                                                                                                    |

<figure><img src="/files/M0rwjRQ9FO65B6pBCoNW" alt=""><figcaption></figcaption></figure>


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://chembl.gitbook.io/surechembl/chemical-search/search-for-structure-in-document-section-s.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.