Prinophalyne is a chemical. It would turn blood white if that blood was from a patient infected with anti-particles.
Many many years later, while living in Vurna colony, it was one of Hans' few remaining pharmaceuticals when he and Werner were trying to figure out why Seska had fallen into a coma. The prinophalyne revealed that Seska had anti-particles, cluing Hans into the realization that the Einstein-Rosen bridge had caused her coma.
- Prinophalyne's name is inspired by Phenolphthalein, an actual chemical that turns pink when exposed to basic solutions.