Formaldehyde

Molecular formula: CH₂O

This gator lives behind Academy 118 and has taken a liking to Carbon. The pond she calls home smells awful and seems to have no other life in it, but she apparently prefers it that way. Once, she somehow managed to get into the biology lab and eat ALL of the dissection frogs. Normally, though, she moves so little that she’s often mistaken for dead.