Draw the structural formula of methanal?

Of ##"methanal"##, i.e. ##"formaldehyde"##?

##O=CH_2##. This has appreciable water solubility (approx. ##40*g*L^-1##) and such are known as ##"formalin"##, which is widely used to preserve tissue in the undertaking caper.

##"Formaldehyde"## has a normal boiling point of ##-19## ##""^@C##. It is a quite unpleasant gas to get a whiff of.