The timeline below shows where the term Betaphenethylamine appears in Neuromancer. The colored dots and icons indicate which themes are associated with that appearance.
Chapter 10
...He wants stimulants, but only ones his body can process. She says she has some: betaphenethylamine.
(full context)
Chapter 21
...Case he also put both of his derms on him. Case realizes he’s overdosing on betaphenethylamine, but Maelcum pulls him up. They have to continue their mission.
(full context)