3d image of propyne skeletal formula

propyne methylacetylene methyl acetylene allylene alkyne mapd gas isomer propadiene gas welding condensed rocket fuel liquid propellant mmh nto monomethylhydrazine nitrogen tetroxide low earth orbital fuel organic synthesis nucleophilic reagent vitamin substance matter material compound component agent stuff reagent functional group precursor reaction production building block molecule molecular formula skeletal structural structure geometry ball stick chemistry science scientific research organic chemical 3d