Cations Mix Back Catalog number: 59891 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2518.7-K-ME Theophylline,1000 µg/mL,MeOH,1mL, Price on request 96263 525 Internal Standard Price on request 673718 Trifloxystrobin, 100 µg/ml, Ethyl acetate, 5ml Price on request