Theophylline,1000 µg/mL,MeOH,1mL, Back Catalog number: 2518.7-K-ME Manufacturer: CHIRON AS Availability: In the manufacturer's stock Price on request - + Recommended 91489 MA - EPH Matrix Spike Rev 1.0/1.1 Price on request 1845.15-1G 4-n-Octylbenzoic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 3575-31-3 Price on request 50610 Chloride 2.0 µg/mL (Cl-) Price on request