Nitrogen Bonded Directly At Alpha Position (i.e., 1-, 4-, 5- Or 8-position) Patents (Class 552/238)
- Halogen bonded directly to the anthracene configured ring system (Class 552/244)
- Carbon bonded directly to the anthracene configured ring system (Class 552/245)
- Oxygen bonded directly to the nitrogen (e.g., nitro bonded directly at 8 position, etc.) (Class 552/246)
- Additional carbon bonded directly to the nitrogen (Class 552/247)
Oxygen or sulfur bonded directly to the nitrogen (e.g., 1- nitroanthraquinone, etc.) (Class 552/253)