delta-Valerolactam Back Catalog number: 73544 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94016 Aroclor 1248 Price on request 59863 Mix 3 Price on request 1089.22-200-TX10 Benzo[ghi]perylene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 93951-66-7 Price on request