Select then click .
In Quick search, click . In Query builder click .
Although this video refers to the older version of SciFinder, it explains why "As Drawn" structure search results may include multiple substances. Use Filters after the search to focus the results.
"As drawn" structure searches return similar variations. You can remove many of them before running a structure search.
|Simplify the structure|
|Remove H||Try attaching pre-set variable A|
|Use pre-set variables and/or define R-groups|
|Make > 1 bond less specific|
|Build a more complex structure||✓||✓|
|Lock atoms, chains, and/or rings||
Or right-click atoms to change their properties
|Set stereochemistry for > 1 bond||
Or right-click bonds to change their properties