Theophylline, 100µg/ml in MeOH, 5ml Back Catalog number: 18000-1150-100ME5 Manufacturer: CHIRON AS Availability: In the manufacturer's stock Price on request - + Recommended 93188 EPA Method 528 Internal Standard Price on request C15603500 N-Nitroso-diethylamine, certified, 0.1g Price on request 675122 Dichlofluanid, 250mg Price on request