Sources for luciferin (vargulin)
From Ucsbgalaxy
The luciferin of Vargula is called vargulin [1]
The company Targeting Systems sells 2 kits which include luciferin (and luciferase).
Targeting Systems website here [2]
VLAR-1 1000 assays Cypridina (Vargula) Luciferase Assay Reagent $400
VLAR-2 1000 assays Cypridina Luciferse Assay reagent (more stable version) $440
Below are coelenterizins DIFFERENT from vargulin:
Promegea sells coelenterizines [3]
Nanolight is another company[4]