Meth­yl acetoacetate at 150 K

The crystal structure of meth­yl acetoacetate, C₅H₈O₃, at 150 K contains discrete mol­ecules.

Cyclo­hexa­none at 150 K

The structure of cyclo­hexa­none, C₆H₁₀O, at 150 K is that of discrete mol­ecules, with no strong intermolecular interactions.

Benzyl N-[1-(furan-2-yl)ethyl­idene]­hydrazine­carbodithio­ate

The title compound, C₁₄H₁₂N₂S₂O, contains a dithio­carbazate group. The phenyl ring is disordered and perpendicular [dihedral angle of 48.0 (3)°] to the rest of the mol­ecule, which is planar.

2-[(Dimethyl­amino)(phen­yl)meth­yl]benzoic acid

The title compound {systematic name: [(2-carboxyl­atophen­yl)­(phen­yl)meth­yl]-N,N-dimethyl­ammonium}, C₁₆H₁₇NO₂, crystallizes as a hydrogen-bonded zwitterion.