delta-Valerolactam Back Catalog number: 73544 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679030 4-OH-Pyriproxyfen (4'-OH-pyr), 100 µg/ml, Acetoni Price on request 0215.22-100-T Benzo[a]chrysene, 100µg/ml in Toluene, 1ml Price on request KBIO-BG2.5-1MU ß-glucuronidase from Red Abalone Price on request