Norbixin Back Catalog number: 10393.24-5MG Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 93188 EPA Method 528 Internal Standard Price on request 2540.7-10MG Paraxanthine, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 611-59-6 Price on request 11367.13-50-ME Perfluorotridecanoic acid, 50µg/mL in MeOH, 1mL Price on request