| Nitrogen, non-heterocyclic (2067) | | 
Oxygen, non-heterocyclic (5119) | |
Oxy/Nitro, non-heterocyclic (299) | |
|
Sulfur, non-heterocyclic (689) | |
Heterocyclic compounds (2415) | |
Alkenes (464) | |
|
Alkynes (162) | |
Biochemicals (990) | |
Boron-containing compounds (194) | |
|
Chiral compounds (548) | |
Cyano-containing compounds (333) | |
Halogen-containing (2966) | |
|
Phosphorus containing (455) | |
Polymers (169) | |
Protected compounds (173) | |
|
Salts (805) | |
Other compounds (16) |
