Instrument Standard 1 Back Catalog number: 52077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8718.10-100-IO Prometryn-d14 (di-iso-propyl-d14), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1202864-57-0 Price on request 9857.16 7-Aminoflunitrazepam-d7, , Solvent-, Unit , # of units-, Cas.no. 879894-27-6 Price on request 91185 EPA Method 507Mix #7 Price on request