indigo blue 12626-73-2 C 16 H 10 N 2 O 4 dibenzoylfuroxan 6635-54-7 C 16 H 11 ClN 4 estazolam 29975-16-4 C 16 H 11 N 3 O 7 naphthalene picric acid 29972-02-9 C 16 H 12 ClFN 2 O fludiazepam 3900-31-0 C ...