literally know every single name they can possibly call this

Premie has no surfactant

Angiotensin II - generated in hypovolemia

Dipalmitoyl lecithin aka dipalmitoylphosphatidylcholine lung surfactant

Phosphatidylinositol 4,5-bisphosphate aka PIP2 Gq receptor pathway

Phosphatidylserine -involved in intrinsic apoptosis when exposed on extracellular surfaces

Sphinogmyelin - composes myelin and also has roles in signal transduction, apoptosis. Lecithin: Sphingomyelin ratio >2 indicates mature fetal lungs.

I think the reason they are being such little turds and calling it dipalmitoyl lecithin instead of DPPC is because there's a thing called the lecithin-sphingomyelin ratio which needs to be high in order to indicate that the fetal lung has matured. Both lecithin (DPPC) and sphingomyelin are present in fetal lungs, but the amount of lecithin shoots way up towards the end of gestation, raising the L:S and indicating lung maturity.