 Functional group is an alkyne, therefore suffix = yne
 There are two alkynes, so insert the multiplier di
 The longest continuous chain is C6 therefore root plus "a" = hexa
 The first point of difference requires that we number from the right
as drawn
 Locants for C≡C units are therefore
1 and 4
hexa1,4diyne
or
1,4hexadiyne

CH_{3}C≡CCH_{2}C≡CH 