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2H-benzo[c]-1,2,3-triazolo[4,5-a]phenazine

1H,3h-naphtho[1,8-cd]thiopyran

Spiro[1,3-dioxolane-2,8(9h)-[7h-7,9a]methanobenz[a]azulene]

7-Chlorotryptophan

Bis(hexamethylene)triamine

O-isopropyl ethylthiocarbamate

Carbamoylguanidine

Erythromycin propionate