Diazepam Back Catalog number: 96520 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-537APDS EPA Method 537 Native Primary Std (br/l mix), 2µg/ml in MeOH, 1,2ml Price on request 70205 Isopropyl benzene Price on request 57090 Thorium (Th) Price on request