Does a resource exist that has the SMILES formula of the generalized pattern that represents the group?
For instance: I have the Aldehydes group, which has the pattern:
-CHO. Is there a resource that lists each functional group with the generic pattern that defines the group and its SMILES representation?
I'm hoping for, at the very least, getting the SMILES formula for the functional groups represented in this pdf: EPA Chemical Compatibility Chart
Follow up question: is SMILES still relevant or are there better ways to represent chemicals?