# Is "1,3-butadiene" unused in the chemical laboratory?

$\text{1,3-butadiene}$ $=$ ${H}_{2} C = C H - C H = C {H}_{2}$, is a volatile gas, whose normal boiling point of $- 4.4$ ""^@C means that it can be used in the lab fairly easily. It is used industrially in the synthesis of man-made rubbers.