EPA Method 555 Herbicide Standard Back Catalog number: 83600 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 81414 Malathion, 1000µg/ml in Hexane 1ml Price on request 10413.4-K-ME Sodium DL-3-hydroxybutyrate-2,4-13C2 Price on request 673775 Cyflufenamid, 100 µg/ml, Ethyl acetate, 5ml Price on request