(+)-Norpropoxyphene.maleate Back Catalog number: 96552 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93188 EPA Method 528 Internal Standard Price on request 8527.27-100-AN Paxilline, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 57186-25-1 Price on request 9305.22-K-AN D-Propoxyphene Price on request