Internal Standard for AB SIM Back Catalog number: 94541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675053 Dimethachlor ESA sodium salt, 10mg Price on request 10178.X-1G Venezuelan Crude,neat,neat,1g, Price on request 678258 15N3-Simazine, 100 µg/ml, Acetonitrile, 1ml Price on request