Q. My substance drawing is resulting in too many results in Scifinder. How I limit the answer set?

If your substance drawing has too many results in Scifinder, you can limit using the Refine tools in the left column. The limiters available are:

Similarity - Reaction Role - Reference Role - Commercial Availability - Number of Components - Molecular Weight - Stereochemistry - Element - Substance Class - Isotopes - Metals - Experimental Property - Experimental Spectrum - Bioactivity Indicator - Target Indicator - Regulatory Data by Country/Region - Regulatory Data by List - Search Within Results

You can search for up to three structures using the "Search Within Results" tab.

For more information, see SciFinder Training: Substance Searching and Filter Substance Results.