L-Proline Back Catalog number: 72241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2170.20-200-T 1-/3-Nitrobenzo[e]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 91259-16-4 / 81340-58-1 Price on request AC-AQ10-030 Aqueous ethanol control EtOH AQ (1.0g/L), 10 x 3.0ml Price on request C231500 Cefacetrile, 10mg Price on request