EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0689.29-100-IO 17ß(H)-28-Norlupane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 134501-93-2 Price on request 9304.15-100-AN 7-Aminoclonazepam-d4, 100µg/mL in Acetonitrile, 1mL Price on request 676329 3-Methoxy-DL-tyrosine, 10mg Price on request