In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.

Benzodiazepine receptor binding of triazolobenzodiazepines in vivo: increased receptor number with low-dose alprazolam.
triazolobenzodiazepines

Synthesis of C17-OH-north unit of ritterazine G via "Red-Ox" modifications of hecogenin acetate.
ritterazine G

Cooperative effects for CYP2E1 differ between styrene and its metabolites.

styrene