Custom Calibration Standard Back Catalog number: 59419 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA11690000AL Clopyralid, 100µg/ml in Acetonitrile, 1ml Price on request 673566 Endrin, 100 µg/ml, Ethyl acetate, 5ml Price on request 81421 Phorate Price on request