Profenofos, 100 µg/ml, Cyclohexane, 5ml Back Catalog number: 674959 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 20013 EPA Method 8260 - Purgeable Internal Standard Price on request 678113 Benzyldimethyldecylammonium chloride, 100 µg/ml, Price on request XA14283710AC Imidacloprid D4, 100μg/ml in Acetone, 1ml Price on request