6020Low Intermediate Standard Back Catalog number: 50649 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA17303000AL Terbuthylazine-desethyl, 100µg/mL in Acetonitrile, 1ml Price on request 676559 Phenazone impurity A, 25mg Price on request 676959 Halfenprox, 10.0 µg/ml, Ethyl acetate, 10ml Price on request