Abstract: A dye for heat sensitive transfer recording represented by formula (I): ##STR1## wherein Q.sup.1 represents an atomic group, which includes at least one nitrogen atom, which is required, together with the carbon atoms to which said atomic group is bonded, to form an at least five membered nitrogen containing heterocyclic ring; R.sub.1 represents an acyl group or a sulfonyl group; R.sub.2 represents a hydrogen atom or an aliphatic group which has from 1 to 6 carbon atoms; R.sub.3 represents a hydrogen atom, a halogen atom, an alkoxy group, or an aliphatic group which has from 1 to 6 carbon atoms; R.sub.4 represents a halogen atom, an alkoxy group, or an aliphatic group which has from 1 to 6 carbon atoms; n represents an integer of from 0 to 4; R.sub.3 may be joined to R.sup.1, R.sup.2, or R.sup.4 to form a ring; R.sup.5 and R.sup.6, which may be the same or different, each represents a hydrogen atom, an aliphatic group which has from 1 to 6 carbon atoms, or an aromatic group; R.sup.5 and R.sup.